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#4176 2012-09-19 19:48:43

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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#4177 2012-09-20 16:17:14

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,838

Re: 10 second questions

Hi bobbym,

The solutions #4322 and #4323 are correct. Excellent!

#4324. The population of a town increases by 5% annully. If its population in 2001 was 138915, what was it in 1998?

#4325. The value of a machine depreciates at the rate of 10% every year. It was purchased 3 years ago. If its present value is $8748, what was its purchase price?


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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#4178 2012-09-20 20:22:47

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

#4179 2012-09-21 13:14:45

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,838

Re: 10 second questions

Hi bobbym,

The solutions #4324 and #4325 are correct. Good work!

#4326. The population of a town increases 4% annully but is decreased by emigration to the extent of 0.5% What would the increase percent in 3 years?

#4327. The current birth rate per thousand is 32, whereas corresponding death rate is 11 per thousand. What is the net growth rate in terms of population increase in 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.

Offline

#4180 2012-09-21 19:27:32

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

#4181 2012-09-22 23:15:47

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,838

Re: 10 second questions

Hi bobbym,

The solution #4327 is perfect. Good work!

#4328. A's salary is 50% more than B's. How much percent is B's salary less than A's?

#4329. If A's height is 40% less than of B, how much percent B's height is more than that of A?


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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#4182 2012-09-23 01:20:28

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

#4183 2012-09-23 22:48:17

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,838

Re: 10 second questions

Hi bobbym,

The solutions #4328 and #4329 are correct. Good work!

#4330. Two numbers are less than a third number by 30% and 37% respectively. How much percent is the second number less than the first?

#4331. Two numbers are respectively 12.5% and 25% more than a third number. What is the first number as a percentage of the second 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.

Offline

#4184 2012-09-23 22:59:16

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

#4185 2012-09-24 22:54:11

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,838

Re: 10 second questions

Hi bobbym,

The solutions #4330 and #4331 are correct. Brilliant!

#4332. 5% of income of A is equal to 15% of income of B and 10% of income of  B is equal to 20% of income of C. If C's income is $2000, then what is the total income of A, B, and C?

#4333. Peter earned 40% more money than Albert. Albert earned 20% less than Michael. By what percent Peter earned more than Michael?


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.

Offline

#4186 2012-09-24 23:47:28

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

#4187 2012-09-25 19:46:51

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,838

Re: 10 second questions

Hi bobbym,

The solution #4333 is correct. Good work!

#4334. How much pure alcohol has to be added to 400 milliliters of a solution containing 15% alcohol to change the concentration of alcohol in the mixture to 32%?

#4335. Milk contains 5% water. What quantity of pure milk ought to be added to 10 liters of milk to reduce this to 2%?


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.

Offline

#4188 2012-09-25 21:11:19

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

#4189 2012-09-26 16:57:36

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,838

Re: 10 second questions

Hi bobbym,

The solutions #4334 and #4335 are correct. Marvelous!

#4336. To a sugar solution of 3 liters containing 40% sugar, one liter of water is added. What is the percentage of sugar in the new solution?

#4337. One type of liquid contains 20% water and the second type of liquid contains 35% of water. A glass is filled with 10 parts of first liquid and 4 parts of second liquid. What is the percentage of water in the new mixture in the glass?


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.

Offline

#4190 2012-09-26 20:23:38

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

#4191 2012-09-27 16:42:29

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,838

Re: 10 second questions

Hi bobbym,

The solutions #4336 and #4337 are correct. Superlative!

#4338. The price of rice is reduced by 2%. How many kilograms of rice can now be bought for the money which was sufficient to buy 49 kilograms of rice earlier?

#4339. A reduction of 21% in the price of wheat enables a person to buy 10.5 kilograms more for $100. What is the reduced price per kilogram?


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.

Offline

#4192 2012-09-27 18:32:51

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

#4193 2012-09-28 20:21:21

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,838

Re: 10 second questions

Hi bobbym,

The solution #4338 is correct. Excellent!

#4340. The price of sugar having gone down by 10%, Sally can buy 6.2 kilograms more for $279. What is the difference between the original and the reduced price per kilogram?

#4341. In an examination, 34% of the students failed in Mathematics and 42% failed in English. If 20% of the students failed in both the subjects, then what is the percentage of students who passed in both the subjects?


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.

Offline

#4194 2012-09-28 22:12:32

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

#4195 2012-09-29 17:30:40

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,838

Re: 10 second questions

Hi bobbym,

The solutions #4340 and #4341 are correct. Excellent!

#4342. Out of 450 students of a school, 325 play football, 175 play cricket and 50 neither play football nor cricket. How many students play both football and cricket?

#4343. In a hotel, 60% had vegetarian lunch while 30% had non-vegetarian lunch and 15% had both types of lunch. If 96 people were present, how many did not eat either type of lunch?


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.

Offline

#4196 2012-09-29 23:56:08

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

#4197 2012-09-30 16:51:08

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,838

Re: 10 second questions

Hi bobbym,

The solutions #4342 and 4343 are correct. Marvelous!

#4344. In a certain office, 72% of the workers prefer tea and 44% prefer coffee. If each of them prefers tea or coffee and 40 like both, find the total number of workers in the office.

#4345. In an examination, 65% students passed in civics and 60% in history, 40% passed in both of these subjects. If 90 students failed in history and civics both, then what is the total number of students?


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.

Offline

#4198 2012-09-30 21:31:28

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

#4199 2012-10-01 17:22:55

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,838

Re: 10 second questions

Hi bobbym,

The solutions #4344 and #4345 are correct. Brilliant!

#4346. Rahul purchased a motorbike at 13/15 of its selling price and sold it at 12% more than its selling price. What is his gain percent?

#4347. A man buys an article for 10% less than its value and sells it for 10% more than its value. What is his gain or loss 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.

Offline

#4200 2012-10-01 21:21:16

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

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