OnMobile Placement Papers 19th February 2005, Infosys City, Electronic city, Bangalore.

Hi friends. I gave Onmobile test (19th feb 2005)
at Infosys city in Electronics city. The test was all
puzzles as it always is. Here r the six questions.

1) There is a farm which contains super hens which r
genetically made to lay eggs of double size than the
normal ones. But as genetic engg. is not well
understood there is only 50-50% chance of a super hen
laying large egg.
The farm is such that it keeps the hen as long as
it lays large eggs and removes the hen out of the farm
as soon as it lays one normal egg.
The farm followed the same process for one year
and counted all the eggs laid by all the super hens.
At the end of the year the ratio of large eggs to the
normal ones is?(4m neg-1)


2) There is bag containing balls of three colors-Red,
Green and Yellow and there are three color blind people A, B and C.
For A Red is invisible and every other color appears Gray.
For B Green is invisible and every other color appears Gray.
For A Yellow is invisible and every other color appears Gray.

They were shown the box and when asked the question
what can see their replies were
A: I can see two balls.
B: I can see two balls.
C: I can see two balls.
How many balls were there in the box and of what
color? (5m neg-2)

3) There is a temple on the top of the hill of height
1000mtrs.Coconuts at the base of the hill are sold at
5/- each and at the top of the hill at 50/- each. One
intelligent businessman thought of buying coconuts at
the base and selling them at the top. For that he
appointed 2 people who can carry only 1000 coconuts at
a time and takes 1 coconut for every mtr of walk.

Can he succeed in his plan. If yes how much profit he
earns for a rupee of investment? (7m neg-2)

4) In the 2nd world war Japan’s war ship named J was
followed by the USA war ship U which is traveling at
100kmph. By the time U was beside J and ready to
launch the torpedo, the place was surrounded by fog
and the army-general in U could not see anything.
Taking this as a chance J changed in direction at an
angle. After 6min the general in U realized it and
informed the helicopter over it to find J. After 3
minutes the helicopter replied that J turned at an
angle 45 degrees and was 5km away from U at the time
when the general asked for it. The intelligent general
quickly turned U and successfully caught J.

How much time “U” would have taken to catch “J”?
(8m neg-2)

Note: (You can save time by mentioning the formula).

5) Two mathematicians met after 27 years in their
college. This was their conversation.

First: How are you doing?
Second: Fine I got married and have three daughters.
First: Fine. I also got married 2 years after the
college. How old are your daughters?
Second: Well, Product of their ages is 72 and their
sum is equal to that house number (It was not mentioned).
First: Wait, I am still counting.
Second: Sorry, youngest of them has just started
walking.
First: Is it! Youngest of mine is also of the same
age.

How old are the three daughters? (12m neg-3)

6)A boy got bored of the class and started walking on
a hall which contained 1024 lockers in a row. He first
opened locker 1 and alternatively left one and opened
one from thereon. When he reached the end he turned
back and opened the first closed locker and from
thereon continued what he did previously. He did this
back and fro method till he opened the last locker.

What is the number of the last locker he opened?
(12m neg-3)

 

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