
Infosys Placement Papers 17
Q:1] Find a five digit number subject to following conditions: a. It contains 2 prime no digits. Ans: 71842 6 Marks. [Q:2] 1, 2 , 3, 4 digits are available. How many number of 4 digited numbers which are divisible by 4. (There should be no repetition of digits in the numbers) can be formed? Ans: 6 numbers. [q:3] Conversation between two employees is as follows: EMPLOYEE1: Hello! Now your experience is twice the my
experience. What is the experience of two employess with the company? Ans: EMPLOYEE1: 4 years EMPLOYEE2: 8 years. [Q:4] A hill of 440 yards is there. Two competitors JACK and JILL go up the hill, first JACK reaches the topmost and immediatly starts back and meet JILL 20 yards from the topmost point. Finally JACK reaches the starting point 0.5 minutes earler than JILL. Speed while coming down is 1.5 times the speed of going up. Find the time taken by JACK for whole journey (880 yards)? Ans: 6.3 minutes. [Q:5] A merchant in the last day sells 2 lamps for Rs.12 price. He finds that he has got 25 % gain on one and 20% lost on the other. Did he loose or gain overall? If so how much? Ans: 60 paise Loss. [Q:6] 4 persons are there caledd JOHN, JACOB, PITER, and WILLIAMS. 4 laungages are there named ENGLISH, ITALIAN, GERMAN, FRENCH. Conditions: a. There is no common language for all. Which two languages does each person speaks? 8 Marks. Hint: ITALIAN IS SPOKEN BY THREE PERSONS (This hint is given in Question paper) [Q:7] 5 couples are there. 10 seats are in one row. Odd numberd seats are reserved for MEN only Like that many conditions are there. This problem is from GREBARRONS BOOK. Essay Writing 1. Machine will soon replace man.




