Infosys Aptitude Questions

1. There is a merry-go-round race going on. One person says,"1/3 of those in front of me and 3/4 of those behind me, give the total number of children in the race". Then the number of children took part in the race? (repeated from previous papers)
   Ans : 13
   
   [ Assume there are x participants in the race.In a round race,no: of participants in front of a person wil b x-1 an that behind him wil b x-1. i.e, 1/3(x-1) + 3/4(x-1) = x ; solving x = 13 ]
   
2. In an Island the natives lie and visitors speak truth. A man wants to know whether a salesman beside him in a bar is a native or visitor. He asked him to ask a woman beside him whether she is a native or visitor. He replied "she says she is a visitor". Then he knew that the salesman is a native or visitor. salesman is in which category , native or visitor?
   
   Ans : Native (not sure)
   
   [ Draw table and see ]
   
3. A man fixed an appointment to meet the manager, Manager asked him to come two days after the day before the day after tomorrow. Today is Friday. When will the manager expect him? (repeated from previous papers)
   
   Ans: Monday
   [Don't confuse it with Tuesday.the correct answer is Monday]
   
4. A jem merchant wants to exhibit his 7 precious jewels in an exhibition, Amethist, Diamond, Ruby, Opel ,G, Sapphire and Emarald.He shows either through the left window or through the right window.At a time he shows only 3 out of his 7 jewels he had. some conditions where given like
   (i) A should be shown only through the left window.
   (ii) D should be shown only through the right window
   (iii) E and S ahould be shown together
   (iv) R should not be shown though the same window as O or G
   (v) Some more conditions...I 4got the remaining..
   4 questions where asked on this and 4 options where given like..
   [A] Which among the following sets are possibly shown through the left window?
   4 options like {a} A,D,G {b} D,O,R {c} A,G,R {d} A,S,E
   [B] Which of the following should be shown through the right window if E is shown through the right window?
   4 options..
   [C] and [D] questions where also there.
   It was an easy question. (repeated from previous papers)
   
5. A man said he spent 1/6 of his as a child, 1/12 as salesman in a liquor shop, 1/7 and 5 years as a politician and a good husband respectively. At that time Jim was born. Jim was elected as Alderman four years back.when he was half of his age. What is his age? (repeated from previous papers)
   
   Ans: 84 years
   
   [Assume that he lived x years.
   X/6 + x/12 + x/7 + 5 + 4 + x/2 = x. Solving x= 84 ]
   
6. Jack,Doug and Ann, 3 children had a running race while returning from school.Mom asked who won the race.Then Jack replied" I wont tell u.I wil give u a clue,When Ann takes 28 steps Doug takes 24 steps, meantime I take 21 steps. Jack explained that his 6 steps equals Droug's 7 steps and Ann's 8 steps. Who won the race? (repeated from previous papers)
   
   Ans: Doug
   
   [ Ann steps = 8,16,24,28 --- finished by 3 & half full steps
   Doug steps=7,14,21,24 --- finished before 3 & half full steps
   Jack steps= 6,12,18,21 --- finished by 3 & half full steps
   So Doug won the race ]
   
7. Every day a cyclist meets a car at the station.The road is straight and both are travelling in the same direction. The cyclist travels with a speed of 12 mph.
   One day the cyclist comes late by 20 min. and meets the car 5miles before the
   Station. What is the speed of the car?
   
   Ans: 60 mph
   
   
8. A problem of persons and profession. 4 persons were there- Jack, Clove, Smith, Morgan belongs to 4 professions policeman ,Druggist ,Grocer ,Butcher.Who all belongs to which profession?Some conditions where given like..
   (i) Clove and Jones drive together to work
   (ii) Clove earns more income than Morgan...I 4got the conditions..
   
   Clove :
   Jones :
   Morgan :
   Smith :
   
9. A lady goes for shopping. She bought some shoestrings. 4 times the number of shoestrings, she bought pins and 8 times, handkerchiefs. She paid each item with their count as each piece's cost. She totally spent Rs. 3.24. How many handkerchiefs did she buy? (repeated from previous papers)
   
10. Complete the series :
    
    a) 3,6,13,26,33,66,____(repeated from previous papers)
    b) 364,361,19,16,4,1,___( " " " )
    
    Ans : a) 63
    b) 1