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book Math Questions and Answer Page 19

(#M40152065) BOOK QUESTION out and home Keep an EYE

Colonel Crackham says that his friend, Mr. Wilkinson, walks from his country house into the neighboring town at the rate of five miles per hour, and, because he is a little tired, he makes the return journey at the rate of three miles per hour. The double journey takes him exactly seven hours. Can you tell the distance from his house to the town?

Asked In Book viswambher (10 years ago)

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(#M40152064) BOOK QUESTION how far was it Keep an EYE

"The steamer," remarked one of our officers home from the East, "was able to go twenty miles an hour downstream, but could only do fifteen miles an hour upstream. So, of course, she took five hours longer in coming up than in going down." One could not resist working out mentally the distance from point to point. What was it?

Asked In Book viswambher (10 years ago)

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(#M40152063) BOOK QUESTION the question of transport Keep an EYE

Twelve soldiers had to get to a place twenty miles distant with the quickest possible dispatch, and all had to arrive at exactly the same time. They requisitioned the services of a man with a small car. "I can do twenty miles an hour," he said, "but I cannot carry more than four men at a time. At what rate can you walk?" "All of us can do a steady four miles an hour," they replied. "Very well," exclaimed the driver, "then I will go ahead with four men, drop them somewhere on the road to walk, then return and pick up four more (who will be somewhere on the road), drop them also, and return for the last four. So all you have to do is to keep walking while you are on your feet, and I will do the res t." They started at noon. What was the exact time that they all arrived together?

Asked In Book viswambher (10 years ago)

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(#M40152062) BOOK QUESTION the bus ride Keep an EYE

George treated his best girl to a bus ride, but on account of his limited resources it was necessary that they should walk back. Now, if the bus goes at the rate of nine miles an hour and they walk at the rate of three miles an hour, how far can they ride so that they may be back in eight hours?

Asked In Book viswambher (10 years ago)

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(#M40152061) BOOK QUESTION the fly and the cars Keep an EYE

A road is 300 miles long. A car, A, starts at noon from one end and goes throughout at 50 miles an hour, and at the same time another car, B, going uniformly at 100 miles an hour, starts from the other end together with a fly travelling 150 miles an hour. When the fly meets car A, it immediately turns and flies towards B. (1) When does the fly meet B? The fly then turns towards A and continues flying backwards and forwards between A and B. (2) When will the fly be crushed between the two cars if they collide and it does not get out of the way?

Asked In Book viswambher (10 years ago)

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(#M40152060) BOOK QUESTION the three cars Keep an EYE

Three cars travelling along a road in the same direction are, at a certain moment, in the following positions in relation to one another. Andrews is a certain distance behind Brooks, and Carter is twice that distance in front of Brooks. Each car travels at its own uniform rate of speed, with the result that Andrews passes Brooks in seven minutes, and passes Carter five minutes later. In how many minutes after Andrews would Brooks pass Carter?
86

Asked In Book viswambher (10 years ago)

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(#M40152057) BOOK QUESTION permutation and combination Keep an EYE

Find the number of ways in which 5 men and 4 women can be seated round a table so that no two women are together solution

Asked In Book Aniruddha Ghosh (10 years ago)

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(#M40152053) BOOK QUESTION probability Keep an EYE

A and B stand in a circle with 14 other persons.if the arrangement is random,what is the chance that there are exactly 4 persons between A and B.

Asked In Book ajit kumar sharma (10 years ago)

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(#M40152042) BOOK QUESTION Permutation & Combination Keep an EYE

How many different sums can be formed with the following coins:
5 rupee, 1 rupee, 50 paisa, 25 paisa, 10 paisa & 1 paisa ?

Asked In Book Garima Srivastava (10 years ago)

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(#M40152040) BOOK QUESTION probability Keep an EYE

how many ways of different necklace is formed from 5 green and 6 red beats?
a)18
b) 21
c)42
d)36

Asked In book kiruthika (10 years ago)

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