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Frequently Asked Infosys Placement Papers with Solution Page 204

(#M40000780) INFOSYS QUESTION Keep an EYE

Two ships start from the opposite banks of river perpendicular to banks. Both are going at constant speed. One is faster than the other. They meet at 720 m from nearest bank. Then they go ahead upto the other end of banks and wait there for 10 minutes. Then they again comeback and meet 400m farfrom the other bank. find out what is the width of river

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(#M40000779) INFOSYS QUESTION Keep an EYE

Two persons A and B met. A told B " myself and my 3 cousins have ages which are prime numbers and sum of our ages is 50. If you know my age then you can tell their ages. what are the ages of cousins?

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(#M40000777) INFOSYS QUESTION Keep an EYE

5 Boys and 5 Girls went for a movie. the problem is based on their seating. analytical one and 3 or 5 sub questions were there on this question simple one.

Solution

this is only a sentence, not a question

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(#M40000794) INFOSYS QUESTION Keep an EYE

Distance between two stations is 5 miles. Every one hour, A train starts from station-A to station-B.
At same time another train starts from station-B. Speed is same for both the trains.The same process continues.(i.e, every one hour a train starts at both ends) How many trains a train can met when it reaches it destination?

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(#M40000791) INFOSYS QUESTION Keep an EYE

there are three types of birds A,B & C . A costs 5pounds, B costs 3 Pounds and C costs 1/3 of a pound.
find the no. of A,B &C such that u will get 100 birds for 100 pounds

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(#M40000787) INFOSYS QUESTION Keep an EYE

a man brought some watermelons to town and sold them. he sold 1/2 more than 1/2 of what he brought and
he was left with one melon. how many melons did he bring to town?

Solution

question is
He sold 1/2 more than 1/2 of what he brought
thus he sold (1/2)+(x/2) and he was left with 1 water melon
so equation will be (1/2)+(x/2)+1 = x
or x/2 = 3/2 so x = 3


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(#M40000786) INFOSYS QUESTION Keep an EYE

A spider spins a web such that each day he spins exactly the same amount
as it had spun until the previous day and finishes the web in 30 days.If two
spiders work in the same manner how many days will they take?

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(#M40000805) INFOSYS QUESTION Keep an EYE

albert and fernandes they have two leg swimming race.both start from opposite and of the pool. On the first leg, the boys pass each other at 18 mt from the deep end of the pool. during the II leg they pass at 10 mt from the shallow end of the pool. Both go at const speed. but one of them is faster. each boy rests for 4 sec to see at the end of the i leg. what is the length of the pool.

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(#M40000804) INFOSYS QUESTION Keep an EYE

some people went for vaction. unfortunately it rained for 13

days when they were there. but whenever it rained in the

morning, they had clean afternood and vice versa. In all they

enjoyed 11 morning and 12 afternoons. how many days did they

stay there totally

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(#M40000803) INFOSYS QUESTION Keep an EYE

in a railway station, there are tow trains going. One in the harbour line and one in the main line, each having a frequency of 10 minutes. the main line service starts at 5 o'clock. the harbour line starts at 5.02a.m. a man goes to the station every day to catch the first train. what is the probability of man catchinhg the first train

Solution

In every interval of 10 minutes, 8 minutes are there for train 1 and 2 minutes for train 2 so probability to catch the train 1 is 8/10. answer by SUCHANDRA RAAVI is good

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