Infosys
Company
Numerical Ability
Time Distance and Speed
A motor cyclist participant of a race says "We drove with the speed of 10 miles an hour one way, but while returning because of less traffic we drove on the same route with 15 miles per hour." What was their average speed in the whole journey?
Read Solution (Total 3)
-
- 2xy/x+y=2*150/25=12 miles/hour
- 13 years agoHelpfull: Yes(10) No(0)
- Average speed=(2*X*Y)/(X+Y)
so (2*10*15)/25=12
answer is 12 miles per hour - 13 years agoHelpfull: Yes(4) No(0)
- 2*10*15/10+15
- 7 years agoHelpfull: Yes(1) No(0)
Infosys Other Question
Some guy holding a glass of wine in his hand looking around in the room says, "This is same as it was four years ago, how old are your two kids now?" Other guy says "Three now, Pam had one more in the meanwhile." Pam says, "If you multiply their ages, answer is 96 and if you add the ages of first two kids, addition is same as our house number." The first guy says, "You are very smart but that doesn't tell me their ages." Pam says, "It's very simple, just think." What are the ages of three kids?
Given following sequence, find the next term in the series:
(i) 0, 2, 4, 6, 8, 12, 12, 20, 16, ____
(ii) 3, 6, 13, 26, 33, 66, ___