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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 28,225

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.

#4494. Find the value of n.

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.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 28,225

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.

#4495.Find the fourth proportional to 0.12, 0.21, and 8?

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.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 28,225

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#4496. Greatest Common Divisor (Highest Common Factor) and Least Common Multiple of x and y are 3 and 105. respectively. If x + y = 36, find the value of

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.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 28,225

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#4497. A polygon has 27 diagonals. Find the number of sides of the polygon.

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 28,225

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#4498. Cost price of 100 books is equal to the selling price of 60 books. Find the gain or loss percentage.

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 28,225

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#4499. Find the remainder when

is divided by 5.Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 28,225

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#4500. The sum of five consecutive numbers is 250. What is the difference between the sum of the smallest and the largest number and the square of the middle number?

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

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**ganesh****Administrator**- Registered: 2005-06-28
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#4501. A wire 25 centimeters long is bent in the form of a rectangle of area 25 square centimeters. Find the length of the longer side.

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

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**ganesh****Administrator**- Registered: 2005-06-28
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#4502. Two trains each 220 meter long are traveling at 45 kilometers per hour and 54 kilometers per hour in opposite directions. They will cross each other in what time?

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

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**ganesh****Administrator**- Registered: 2005-06-28
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#4503. If ten friends shake hands mutually, then find the number of handshakes.

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 28,225

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#4504. The Greatest Common Divisor and Least Common Multiple of two numbers are 44 and 264 respectively. If the first number is divided by 2, the quotient is 44. Find the other number.

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

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**ganesh****Administrator**- Registered: 2005-06-28
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#4505.A machine is marked at $7500 for sale. The shopkeeper allows successive discounts of 8%, 5%, and 2% on it. Find the net Selling Price.

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 28,225

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#4506. A coin is tossed thrice. Find the probability of of exactly two heads showing up.

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

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 28,225

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#4507. 'A' is thrice as good a workman as 'B', therefore able to finish a job is 60 days less than 'B'. Working together, in how many days will they do it?

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

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**ganesh****Administrator**- Registered: 2005-06-28
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#4508. Simplify:

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,626

Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 28,225

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Good attempt, Monox D. I-Fly!

#4509. The Least Common Multiple and the Greatest Common Divisor of the numbers 28 and 42 are in the ratio _________.

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

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**Monox D. I-Fly****Member**- From: Indonesia
- Registered: 2015-12-02
- Posts: 1,626

Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 28,225

Hi,

The solution #4509 is correct. Excellent, Monox D. I-Fly!

#4510. A 260 meter long train crosses a platform thrice its length is 80 seconds. What is the speed of the train in kilometers per hour?

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

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