# Math Is Fun Forum

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

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## #1301 2020-09-12 20:29:27

ganesh
Registered: 2005-06-28
Posts: 35,591

### Re: Compute the solution:

Hi,

Neat work!

737. Two dice are numbered 1, 2, 3, 4, 5, 6 and 1, 1, 2, 2, 3, 3 respectively. They are thrown and the sum of the numbers on them is noted. Find the probability of getting each sum from 2 to 9 separately.

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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## #1302 2020-09-13 17:24:32

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 672

### Re: Compute the solution:

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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## #1303 2020-09-13 19:00:28

ganesh
Registered: 2005-06-28
Posts: 35,591

### Re: Compute the solution:

Neat work!

738. Find a quadratic polynomial whose sum and product respectively of the zeroes are given below. Also, find the zeroes of these polynomials by factorization.

.

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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## #1304 2020-09-14 13:24:47

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 672

### Re: Compute the solution:

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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## #1305 2020-09-14 15:42:18

ganesh
Registered: 2005-06-28
Posts: 35,591

### Re: Compute the solution:

Hi,

Neat work!

739. A circular park is surrounded by a road 21 m wide. If the radius of the park is 105 m, then find the area of the road. Use

.

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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## #1306 2020-09-15 15:20:47

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 672

### Re: Compute the solution:

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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## #1307 2020-09-15 19:32:11

ganesh
Registered: 2005-06-28
Posts: 35,591

### Re: Compute the solution:

Good work!

740. If all the vertices of a rhombus lie on a circle. Find the area of the rhombus, if the area of the circle is 1256 square centimetres. Use

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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## #1308 2020-09-16 16:24:43

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 672

### Re: Compute the solution:

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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## #1309 2020-09-16 21:55:18

ganesh
Registered: 2005-06-28
Posts: 35,591

### Re: Compute the solution:

Good work!

741. The compound interest accrued on an amount at the end of three years at 15% per annum is \$6500.52. What is the amount?

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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## #1310 2020-09-17 16:41:54

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 672

### Re: Compute the solution:

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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## #1311 2020-09-17 22:27:42

ganesh
Registered: 2005-06-28
Posts: 35,591

### Re: Compute the solution:

Good attempt!

742. The difference between compound interest and simple interest at the rate of 25% per annum is \$910. Find the amount of money lent.

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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## #1312 2020-09-19 14:37:01

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 672

### Re: Compute the solution:

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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## #1313 2020-09-19 17:02:40

ganesh
Registered: 2005-06-28
Posts: 35,591

### Re: Compute the solution:

Good attempt!

743. Find the compound interest on \$2,500 at the rate of 6% per annum after 2 years.

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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## #1314 2020-09-20 13:27:34

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 672

### Re: Compute the solution:

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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## #1315 2020-09-20 18:15:32

ganesh
Registered: 2005-06-28
Posts: 35,591

### Re: Compute the solution:

Hi,

Good attempt!

744. \$6,000 was lent at the rate of r% per annum compound interest. In the second year, the interest was \$15 more than the interest in the first year. Find the value of r.

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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## #1316 2020-09-21 14:00:40

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 672

### Re: Compute the solution:

Last edited by 666 bro (2020-09-21 15:06:32)

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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## #1317 2020-09-21 20:11:36

ganesh
Registered: 2005-06-28
Posts: 35,591

### Re: Compute the solution:

Good attempt!

745. A sum of money amounts to \$4,840 in 2 years and to \$5,324 in 3 years at compound interest compounded annually. Find the rate of interest per annum.

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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## #1318 2020-09-22 13:32:11

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 672

### Re: Compute the solution:

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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## #1319 2020-09-22 13:51:34

ganesh
Registered: 2005-06-28
Posts: 35,591

### Re: Compute the solution:

Good work!

747. A car covers the first 35 kilometers of its journey in 45 minutes and the remaining 69 kilometers in 75 minutes. What is the average speed of the car in kilometers per hour?

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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## #1320 2020-09-23 15:00:45

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 672

### Re: Compute the solution:

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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## #1321 2020-09-23 20:49:18

ganesh
Registered: 2005-06-28
Posts: 35,591

### Re: Compute the solution:

Good work!

748. A train passes a platform 90 meter long in 30 seconds and a man standing on the platform in 15 seconds. Find the speed of the train in kilometers per hour.

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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## #1322 2020-09-25 00:58:32

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 672

### Re: Compute the solution:

Last edited by 666 bro (2020-09-25 00:59:06)

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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## #1323 2020-09-25 01:29:51

ganesh
Registered: 2005-06-28
Posts: 35,591

### Re: Compute the solution:

Keep trying!

749. Given that the speed of a train, 250 meters long is 72 kilometers per hour, and it crosses the other train, 350 meters long coming from the opposite direction in 20 seconds. What is the speed of the other train in meters per second or kilometers per hour?

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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## #1324 2020-09-26 02:07:37

666 bro
Member
From: Flatland
Registered: 2019-04-26
Posts: 672

### Re: Compute the solution:

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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## #1325 2020-09-26 02:55:06

ganesh
Registered: 2005-06-28
Posts: 35,591

### Re: Compute the solution:

Keep trying!

750.

find

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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