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#4151 2012-09-08 20:53:37

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4152 2012-09-09 23:02:30

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: 10 second questions

Hi bobbym,

The solutions #4299 and #4300 are correct. Neat job!

#4301. Two students appeared at an examination. One of them secured 9 marks more than the other and his marks was 56% of the sum of their marks. What are marks obtained by them?

#4302. If x is 90% of y, then what percent of x is y?


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4153 2012-09-10 00:43:11

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4154 2012-09-10 20:39:57

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: 10 second questions

Hi bobbym,

The solution #4301 is correct. Good work!

#4303. Kevin spent $35,000 in buying raw materials, $40,000 in buying machinery and 20% of the total amount he had as cash with him. What is the total amount?

#4304. A man spends 35% of his income on food, 25% on children's education, and 80% of the remaining on house rent. What percent of his income he is left with?


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4155 2012-09-10 20:51:55

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4156 2012-09-11 23:57:28

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: 10 second questions

Hi bobbym,

The solution #4303 I get

.

The solution #4304 is correct. Good work!

#4305. If x% of y is the same as 4/5 of 80, then what is the value of xy?

#4306. If x% of y is 100 and y% of z is 200, then find the relation between x and z.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4157 2012-09-12 00:49:35

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4158 2012-09-12 13:30:37

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: 10 second questions

Hi bobbym,

The solutions #4305 and #4306 are correct. Excellent!

#4307. If p% of p is 36, then what is p equal to?

#4308. If x% of y is equal to z, what percent of z is x?
(a)


(b)

(c)

(d)


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4159 2012-09-12 13:44:49

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4160 2012-09-13 20:33:34

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: 10 second questions

Hi bobbym,

The solution #4307 is correct. Neat job!

#4309. A scored 30% marks and failed by 15 marks. B scored 40% marks and obtained 35 marks more than those required to pass. What is the pass percentage?

#4310. The price of a table is $400 more than that of a chair. If 6 tables and 6 chairs together cost $4800, by what percent is the price of the chair less than that of the table?


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4161 2012-09-13 20:45:19

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4162 2012-09-14 22:48:07

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: 10 second questions

Hi bobbym,

The solutions #4309 and #4310 are correct. Excellent!

#4311. Of the 1000 inhabitants of a town, 60% are males of whom 20% are literate. If, of all the inhabitants, 25% are literate, then what percent of the females of the town are literate?

#4312. 37.5 % of the candidates in an examination were girls, 75% of the boys and 62.5% of the girls passed and 342 girls failed. Find the number of boys failed.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4163 2012-09-15 00:15:01

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4164 2012-09-15 20:38:28

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: 10 second questions

Hi bobbym,

The solution #4311 is correct. Good work!

#4313. The sum of the number of boys and girls in a school is 150. If the number of boys is x, then the number of girls becomes x% of the total number of students. What is the number of boys?

#4314. In an examination of n questions, a student replied 15 out of the first 20 questions correctly. Of the remaining questions, he answered one-third correctly. All the questions have the same credit. If the student gets 50% marks, what is the value of n?


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4165 2012-09-15 22:32:04

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4166 2012-09-16 20:15:20

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: 10 second questions

Hi bobbym,

The solutions #4313 and #4314 are correct. Superlative!

#4315. What percent decrease in salaries would exactly cancel out the 20 percent increase?

#4316. A number is increased by 20% and then again by 20%. By what percent should the increased number be reduced so as to get back the original number?


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4167 2012-09-16 21:00:44

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4168 2012-09-17 20:11:52

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: 10 second questions

Hi bobbym,

The solutions #4315 and #4316 are correct. Splendid!

#4317. The price of tea being increased by 20%, a man reduces his consumption by 20%. By how much percent would his expenses for tea be decreased?

#4318. Entry fee in an exhibition was $1. Later, this was reduced by 25% which increased the sale by 20%. What is the percentage increase in the number of visitors?


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4169 2012-09-17 23:14:59

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4170 2012-09-18 07:29:55

Denominator
Member
Registered: 2009-11-23
Posts: 219

Re: 10 second questions

Hello Ganesh


koko28.png

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#4171 2012-09-18 18:11:27

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: 10 second questions

Hi bobbym and Denominator,

bobbym : The solutions #4317 and #4318 are correct. Excellent!

Denominator : The solution #4317 is correct. Good work!

#4319. If the price of gas is increased by 30%, by how much percent a car owner must reduce his consumption in order to maintain the same budget?

#4320. In a fraction, the numerator is increased by 40% and the denominator is increased by 80%, then what fraction of the original is the new fraction?


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4172 2012-09-18 19:59:07

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4173 2012-09-18 22:51:13

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: 10 second questions

Hi bobbym,

The solutions #4319 and #4320 are correct. Magnificent!

#4321. If the price of sugar rises from $6 per kilogram to $7.5 per kilogram, a person, to have no increase in his expenditure on sugar, would have to reduce his consumption of sugar by what percent?


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4174 2012-09-19 02:14:43

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4175 2012-09-19 19:43:41

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,956

Re: 10 second questions

Hi bobbym,

The solution #4321 is correct. Good work!

#4322. The population of a town was 160,000 three years ago. If it increased by 3%, 2.5%, and 5% respectively in the last three years, then what is the present population?

#4323. The population of a town 2 years ago was 62,500. Due to migration to big cities, it decreases every year at the rate of 4%. What is the present population of the town?


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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