IBPS Government Jobs Exams Numerical Ability Boats and Streams

The ratio of speed of a boat in still water to speed of the current is 10 : 1. If ratio of the time taken by the boat to travel D km downstream to the time taken to travel (D – 45) km upstream is 3 : 2. Find the value of D.
A)88 B)54 C)110 D)99 E)66

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IBPS Other Question

Train A crosses a vertical pole at the speed of 15 m/s in 20 seconds. Speed of train A is 3 m/s less than the speed of train B and length of train B is 30 meter less than length of train A. Find the time taken by Train B to cross 270 meter long platform.
A)20 seconds B)15 seconds C)30 seconds D)45 seconds E)40 seconds 4 years hence the sum of ages of A and B will be 16 years more than the sum of the present ages of B and C. If sum of ages of A and C, 4 years ago was 32 years, then what is the present age of C?
A)18 years B)14 years C)10 years D)16 years E)12 years