A car moves at a speed of 72 km/hr after repairing and moves at the speed of 54 km/hr before repairing. It covers X distance in 6 hours after repairing. How much time (in hours) will it take to cover 3X distance before repairing?
A 20 B 24 C 18 D 21
Correct Ans : B
If the length of a rectangle is increased by 50%,then by how much percent its breadth should be reduced to keep the area the same?
A 50 B 33.33 C 66.66 D 75
Correct Ans: B
In a circle of radius 14 cm a maximum size ofsquare inscribed. What is the area of square?
A 400 B 196 C 392 D 350
Correct Ans : C
Three pipes p, q and r can fill a swimming pool in 40, 45 and 50 minutes. If the pipe q is closed 5 minutes before the swimming pool gets filled, then in how much time will the swimming pool get full?
A 8minutes B 2000/121minutes C 1648/174 minutes D 1732/132 minutes
Correct Ans : B
If length and breadth of a cuboid is increased by 20%, then by how much percent the height should be reduced to keep the volume same?
A 40% B 44% 30.55 35.55
Correct Ans : C
Find the arithmetic mean of first 8 multiples of 13
.
A 72.5 B 55.4 C 58.5 D 61.8
Correct Ans : C
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