Wipro Company Numerical Ability Time Distance and Speed

In a race on a circular track, there were 12 laps of 150 mts. each. A and B were neck-to-neck till the and of the third lap, but thereafter B went.to win the race by 81 ms. If B gained uniformly over A in all the remaining laps, the ratio of the speeds of A and B for each of those laps was

a. 129: 150
b. 150: 141
c. 150: 129
d. 141 1.50

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Wipro Other Question
2 objects start from the same pointand move in opposite directions along a circular path 700 metres long. The object that moves in the anti-clockwise direction moves at 45 metres/sec and the other at 60 metres/sec. Whenever they meet, they reverse direction and continue moving at the same speed as before. How many metres from the starting point (in anti-clockwise direction) will they be when they meet for the 12th/sup> time?

a. Can't say
b. 0
c. 300
d. 400 A liquid comprises kerosene, benzene, and petrol in the ratio 1 : 3 : 4 in one container A and 2: 1 : 6 in another container B. if a solution is desired that will contain of 16 2/3 % kerosene. In what proportion must the contents be taken from A and B?

a. 8 : 7
b. 4 : 3
c. 12 : 11
d. Indeterminate