IBPS Government Jobs Exams Numerical Ability Boats and Streams

The speed of boat in still water is 8 km/hr more than speed of current and the ratio of speed of boat in downstream to the speed of boat in upstream is 2:1. Find the total distance covered by boat in downstream in 4.5 hours?
A) 76 km B) 84 km C) 72 km D) 78 km E) 80 km

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IBPS Other Question

The population of a colony was 3600 three years back. It is 4800 right now. What will be the population three years down the line, if the rate of growth of population has been constant over the years and has been compounding annually?
A) 6000 B) 6400 C) 7200 D) 9600 E) None of these If the area of three different faces of a Cuboid is 35cm square, 30cm square and 42cm square. Find out its volume?
A) 160 cm² B) 180 cm² C) 190 cm² D) 210 cm² E) 155 cm²