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Frequently Asked Microsoft Placement Papers with Solution Page 6

(#M40000094) MICROSOFT QUESTION Keep an EYE

One train leaves Los Angeles at 15mph heading for New York. Another train leaves from New York at 20mph heading for Los Angeles on the same track. If a bird, flying at 25mph, leaves from Los Angeles at the same time as the train and flies back and forth between the two trains until they collide, how far will the bird have traveled?

Solution

This is an infinite round problem means the bird will complete infinite rounds in this manner now for finding the total distance traveled by the bird let us consider the total distance between the two given stations as L. Here since the distance between these two stations is not given so answer will be in terms of L.
speed of the two trains moving in opposite directions are 15 mph and 20 mph.
so time taken for the collision between the trains will be L/(15+20) = L/35
In this much time the bird will move 25*L/35 miles = 5L/7 miles

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Asked In Microsoft (15 years ago)

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(#M40007998) MICROSOFT QUESTION aptitude Keep an EYE

.a triangle ABC is given, a line DE is parallel to base side and that cuts the triangle.. the ratio of area of triangle to the area of trapezium .given DE/BC=3/5..

Asked In Microsoft (13 years ago)

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(#M40000208) MICROSOFT QUESTION Keep an EYE

If you had an infinite supply of water and a 5 quart and 3 quart pail, how would you measure exactly 4 quarts?

Asked In Microsoft Naveen (14 years ago)

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(#M40003607) MICROSOFT QUESTION what happens? Keep an EYE

Every man in a village of 100 married couples has cheated on his wife. Every wife in the village instantly knows when a man other than her husband has cheated, but does not know when her own husband has. The village has a law that does not allow for adultery. Any wife who can prove that her husband is unfaithful must kill him that very day. The women of the village would never disobey this law. One day, the queen of the village visits and annoces that at least one husband has benn unfaithful. What happens?

Asked In Microsoft kiran kumar reddy (14 years ago)

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(#M40007995) MICROSOFT QUESTION analytical Keep an EYE

Imagine you are standing in front of a mirror, facing it. Raise your left hand. Raise your right hand. Look at your reflection. When you raise your left hand your reflection raises what appears to be his right hand. But when you tilt your head up, your reflection does too, and does not appear to tilt his/her head down. Why is it that the mirror appears to reverse left and right, but not up and down?

Asked In Microsoft (13 years ago)

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(#M40007997) MICROSOFT QUESTION analytical Keep an EYE

If you have two buckets, one with red paint and the other with blue paint, and you take one cup from the blue bucket and poor it into the red bucket. Then you take one cup from the red bucket and poor it into the blue bucket. Which bucket has the highest ratio between red and blue? Prove it mathematically.

Asked In Microsoft (13 years ago)

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(#M40008002) MICROSOFT QUESTION aptitude Keep an EYE

3/p=6,3/q=15......find p-q

Asked In Microsoft (13 years ago)

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(#M40003608) MICROSOFT QUESTION Keep an EYE

You have eight balls all of the same size. 7 of them weigh the same, and one of them weighs slightly more. How can you fine the ball that is heavier by using a balance and only two weighings?

Asked In Microsoft kiran kumar reddy (14 years ago)

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(#M40000217) MICROSOFT QUESTION Keep an EYE

Imagine a disk spinning like a record player turn table. Half of the disk is black and the other is white. Assume you have an unlimited number of color sensors. How many sensors would you have to place around the disk to determine the direction the disk is spinning? Where would they be placed?

Asked In Microsoft Naveen (15 years ago)

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(#M40000213) MICROSOFT QUESTION Keep an EYE

Suppose you had 8 billiard balls, and one of them was slightly heavier, but the only way to tell was by putting it on a scale against another. What's the fewest number of times you'd have to use the scale to find the heavier ball?

Asked In Microsoft Naveen (14 years ago)

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