Placement Papers - Infosys

1)sets problem
if 75 members join chemistry and 83 members join physics if there r total 100 persons and 10 dont join any other course how many joined both courses
i donno exact figures but answer is 68

2)if sal and saul start race at same time and saul beats sal by 10 yards now if saul starts 10 yards behind who will win the race (saul is answer)

3)a series of euations r given we have to find the value of eachsome 8 to 9 equations r given

4)A+B+C+D=D+E+F+G=G+H+I=17 AND A= 4FIND THE VALUES OF D AND G (5,1 R THE ANSWERS)


5)how many ways we can arrange numbers on dice such that 1 and 6 r opposite ,5and 2 r opposite and 4and 3 r opposite on a dice ans is 24

6)some milk water problem i dont rember (iam very very sorry)

7) i dont remember sorry

8)sapphire,emerald, opal,daiamond question every one knows that

9)there r two couple they had 15 children with a gap of 1 and half years b/n each other and the elder says he is 8 times elder than youngest what r their ages
ans)24_elder

10)choclates problem similar to shakuntala devi answer is 32

in the interveiwthey asked me abt projects and general only at last i got in infosys by the grace of god only