Placement Papers: Infosys Paper 71

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Infosys Paper 71

  1. There is a escalator and 2 persons move down it. A takes 50 steps and B takes 75 steps while the escalator is moving down. Given that the time taken by A to take 1 step is equal to time taken by B to take 3 steps. Find the no. Of steps in the escalator while it is staionary.
  2. If artists make paintings using canvases in days then how many artists r required to make 25 paintings using 25 canvases in 25 days?
  3. If the digits of my present age are reversed then i get the age of my son. If 1 year ago my age was twice as that of my son. Find my present age. Ans. Father-73, son-37
  4. There are 6561 balls out of them 1 is heavy. Find the min. No. Of times the balls have to be weighed for finding out the haevy ball. Ans. 8
  5. If i walk with 30 miles/hr i reach 1 hour before and if i walk with 20 miles/hr i reach 1 hour late. Find the distance between 2 points and the exact time of reaching destination is 11 am then find the speed with which it walks. Ans. 120miles and 24 miles/hr
  6. There r four face cards (J, Q, K, A) all of different types (diamond, club, spade, heart) and some conditions r given. Find the order of cards. Ans. King ⇾ jack ⇾ queen ⇾ ace heart diamond spade club
  7. If A, B, C, D, E r 5 members of a family. 4 of them give true statements:
    1. E is my mother in law
    2. C is my son in law՚s brother
    3. B is my father՚s brother
    4. A is my brother՚s wife
  8. Who made the stmt. And what r the realtions among them
  9. The product of 5 different temperatures is 12. If all of then r integers then find all the temperatures ans. 2, 1,1, 2,3
  10. If a flight travels between India (IST) and Toronto (TST) . There r 2 types of flights slow and fast. IST TST SLOW--FAST--TST IST SLOW--FAST-? These are the departure times and arrival times for slow and fast flights in IST and TST. Then find the time in? ans. 22: 40
  11. There r 9 cities numbered 1 to 9. From how many cities the flight can start so as to reach the city 8 either directly or indirectly such the path formed is divisible by 3. Eg. 1368-Flights goes through 1 − 3 − 6 − 8.
  12. If i do this puzzle i find it to be hard than the last puzzle that i did before that after that________very complex