• Placement Questions

Placement Papers with Solutions

(#M40002341) TCS QUESTION Keep an EYE

There are 100 can out of of them one is poisoned .if a person tastes very little of this he will die within 14 hours so they decided to test with a mice .given that a mouse dies in 24 hours and you have 24 hours in all to find out the poisoned can , how many mice are required to find the poisoned can?

Asked In TCS manjuladevi (14 years ago)

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(#M40002281) TCS QUESTION Keep an EYE

3,22,7,45,15?,31

Asked In TCS manjuladevi (14 years ago)

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(#M40002280) TCS QUESTION Keep an EYE

3,22,7,45,15,?,31

Asked In TCS manjuladevi (14 years ago)

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(#M40002274) TCS QUESTION Keep an EYE

Two bowls are taken, one contains water and another contains tea.one spoon of water is added to second bowl and mixed well, and a spoon of mixture is taken from second bowl and added to the second bowl. Which statement will hold good for the above?

Asked In TCS manjuladevi (14 years ago)

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(#M40002273) TCS QUESTION Keep an EYE

A box of 150 packets consists of 1kg packets and 2kg packets. Total weight of box is 264kg. How many 2kg packets are there?

Asked In TCS manjuladevi (14 years ago)

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(#M40002272) TCS QUESTION Keep an EYE

. There are two trees in a lawn. One grows at a rate 3/5 of the other in 4 years. If the total growth of trees is 8 ft. What is the height of the smaller tree after 2 years

Asked In TCS manjuladevi (14 years ago)

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(#M40002269) TCS QUESTION tcs Keep an EYE

How many 9 digit numbers are possible by using the digits 1,2,3,4,5 which are divisible by 4 if the repetition is allowed?
a) 5^7 b) 5^6 c) 5^9 d) 5^8

Solution

_ _ _ _ _ _ _ _ _ (9 digit number)
Digits that can be used = 1, 2, 3, 4 and 5
For a number to divisible by 4, the last two digits have to be divisible by 4
So, the units digit cannot be 1, 3 or 5
If the units digit is 2, only 12, 32 adn 52 are acceptable as the last two digits
If the units digit is 4, only 24 and 44 are acceptable as the last two digits.
So, total 5 cases 12,24,32,44,52 are possible for the last two digits.
Now, the first 7 digits of the 9 digit number can be filled in 5^7 ways as each place can be filled by 1, 2, 3, 4 or 5.
So, desired answer = 5^7*5 = 5^8
This answer is given by Amitesh kumar and is right

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Asked In TCS manjuladevi (14 years ago)

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(#M40002267) TCS QUESTION Keep an EYE

20 men handshake with each other without repetition. What is the total number of handshakes made?
a) 190 b) 210 c) 150 d) 250

Asked In TCS manjuladevi (14 years ago)

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