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: 23,195

Hi bobbym.

#5033. The diagonals of two squares are in the ratio 2:5. Find the ratio of their areas.

#5034. If each side of a square is increased by 25%, find percentage change in its area.

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: 23,195

Hi bobbym,

#5035. Find the area of a triangle whose sides measure 13 centimeter, 14 centimeter, and 15 centimeter.

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: 23,195

Hi bobbym,

The solution #5035 is correct. Neat job!

#5036. Three-fourth of a number is 60 more than its one-third. Find the number.

#5037. When 24 is subtracted from a number, it reduces to its four-seventh. What is te sum of the digits of that number?

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: 23,195

Hi bobbym,

The solutions #5036 and #5037 are correct. Neat work!

#5038 How many minutes does Aaron take to cover a distance of 400 meters, if he runs at a speed of 20 kilometers per hour?

#5039. A cyclist covers a distance of 750 meters in 2 minutes 30 seconds. What is the speed in kilometers per hour of the cyclist?

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: 23,195

Hi bobbym,

The solutions #5038 and #5039 are correct. Excellent!

#5040. Peter can cover a certain distance in 1 hour 24 minutes by covering two-third of the distance at 4 kilometers per hour and te rest at 5 kilometers per hour. Find the total distance.

#5041. A man traveled from the village to the post-office at the rate of 25 kilometers per hour and walked back at the rate of 4 kilometers per hour. If the whole journey took 5 hours 48 minutes, find the distance of the post-office from the village.

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: 23,195

Hi bobbym,

The solutions #5040 and #5041 are correct. Fabulous!

#5042. A car moves at the speed of 80 kilometers per hour. Find its speed in meters per second.

#5043. An athlete runs 200 meters race in 24 seconds. Find his speed in kilometers per hour.

Have a wonderful weekend!

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: 23,195

Hi bobbym,

The solutions #5042 and #5043 are correct. Good work!

#5044. If 15 toys cost $234, what do 35 toys cost?

#5045. If 36 men do a piece of work in 25 hours, in how many hours will 15 men do it?

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

Offline

**Maburo****Member**- From: Alberta, Canada
- Registered: 2013-01-08
- Posts: 287

"Pure mathematics is, in its way, the poetry of logical ideas."

-Albert Einstein

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 23,195

Hi Maburo,

The solutions #5044 and #5045 are correct. Marvelous!

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: 23,195

Hi bobbym and Maburo,

The solutions #5044 and #5045 are correct. Neat work!

#5046. If 20 men can build a wall 56 meters long in 6 days, what length of a similar wall can be built by 35 men in 3 days?

#5047. If 15 men, working 9 hours a day, can reap a field in 16 days, in how many days will 18 men reap the field, working 8 hours a day?

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

**Maburo****Member**- From: Alberta, Canada
- Registered: 2013-01-08
- Posts: 287

"Pure mathematics is, in its way, the poetry of logical ideas."

-Albert Einstein

Offline

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 23,195

Hi bobbym and Maburo,

The solutions #5046 and #5047 are correct. Marvelous, bobbym and Maburo!

#5048. A contract is to be completed in 46 days and 117 men were set to work, each working 8 hours a day. After 33 days,

of the work is completed. How many additional men may be employed so that the work be completed in time, each man now working 9 hours a day?#5049. A garrison of 3300 men had provisions for 32 days, when given at the rate of 850 grams per head. At the end of 7 days, a reinforcement arrives and it was found that the provisions will last 17 days more, when given at the rate of 825 grams per head. What is the strength of the reinforcement?

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: 23,195

Hi bobbym,

The solutions #5048 and #5049 are correct. Fantastic!

#5050. If 11.25 meters of a uniform iron rod weighs 42.75 kilograms, what will be the weight of 6 meters of the same rod?

#5051. On a scale of map, 0.6 centimeters represents 6.6 kilometers. If the distance between the points on the map is 80.5 centimeters, what is the actual distance between these points?

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: 23,195

Hi bobbym,

The solution #5051 is correct. Excellent!

#5052. A man buys an article for $27.50 and sells it for $28.60. Find his gain percent.

#5053. If a television is purchased for $490 and sold for $465.50, find the loss percent.

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