Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 23,064

Hi bobbym,

The solution #4201 is correct. Excellent!

#4203. 60% of 480 + 48% of 600 = ?

#4204. 75% of 250 - ? % of 380 = 54.5

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

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

Offline

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

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 23,064

Hi bobbym,

The solutions #4203 and #4204 are correct. Excellent!

#4205. A man spends 35% of his income on house rent, 75% of the remaining on other items. What percentage of the income does he save?

#4206. The passing marks in an examination is 36%. If a student gets 72 marks and failed by 18 marks, then what is the maximum marks in the examination?

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

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

Offline

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

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 23,064

Hi bobbym,

The solution #4206 is correct. Good work!

#4207. In an examination, 93% of the students passed and 259 failed. What is the total number of students?

#4208. A earns 25% more than B. If they together earn $2700 during the year, what is the amount that B earn annually?

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

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

Offline

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

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 23,064

Hi bobbym,

The solutions #4207 and #4208 are perfect. Neat job!

#4209. Out of a class of 38, 3 were absent. 20% of the remainder failed to do the homework. How many girls did the homework?

#4210. When 8% of a number is added to itself, the result is 810. What is the number?

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

Offline

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

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 23,064

Hi bobbym,

The solutions #4209 and #4210 are correct. Neat job!

#4211. In an examination, 52% failed in English and 42% failed in Mathematics. If 17% failed in both, then what is the percentage of those who passed in both subjects?

#4212. In a village, 40% of the population is literate. If the total population is 750, then what is the number of illiterates?

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

Offline

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

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 23,064

Hi bobbym,

The solutions #4211 and #4212 are correct. Good work!

#4213. If two numbers are in the ratio 2:3 and their sum is 125, find the numbers.

#4214. Two numbers are in the ratio 5:3. Their difference is 20, then what is the smaller number?

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

Offline

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

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

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,037

Hi ganesh

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 23,064

Hi bobbym and anonimnystefy,

The solutions #4213 and #4214 are correct. Good work!

#4215. If A : B = 3 : 4 and B : C = 6: 7, then what is the ratio A : B : C equal to?

#4216. If A : B = 2 : 3, B : C = 4 : 5 and C : D = 6 : 7, then A : B : C : D is equal to ________________

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

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,037

Hi ganesh

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

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

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 23,064

Hi anonimnystefy and bobbym,

The solutions #4215 and #4216 are correct. Excellent!

#4217. In 50 liters mixture of milk and water, the ratio of milk and water is 3 : 2. Find the quantity of water to be added in the mixture in order to make the ratio 2 : 3.

#4218. A mixture contains alcohol and water in the ratio 4 : 3. If 5 liters of water is added to the mixture, the ratio becomes

4 : 5. Find the quantity of alcohol in the given mixture.

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

Offline

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

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

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,037

Hi ganesh

*Last edited by anonimnystefy (2012-07-27 01:39:04)*

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 23,064

Hi,

The solutions #4217 and #4218 are correct, bobbym! Excellent!

The solution #4217 is correct, anonimnystefy! Good work!

#4219. A, B, and C enter into a partnership investing $35,000, $45,000, and $55,000 respectively. Find the respective share of A in an annual profit of $40,500.

#4220. A, B, and C started a shop by investing $2700, $8100, and $7200 respectively. At the end of one year, the profit was distributed. If B's share was $3600, find their total profit.

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

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,037

Hi ganesh

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

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

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 23,064

Hi anonimnystefy and bobbym,

The solutions #4219 and #4220 are correct. Excellent!

#4221. A can do a piece of work in 5 days and B can do the same work in 10 days. How many days would both take to complete the work?

#4222. A and B can finish a work in 16 days while A alone can do the same work in 24 days. B alone can finish the work in how many days?

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

Offline

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

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

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,037

Hi ganesh

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline