IBPS Government Jobs Exams Numerical Ability Simple & Compound Interest

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

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IBPS Other Question

A bag has 4 red and 5 black balls. A second bag has 3 red and 7 black balls. One ball is drawn from the first bag and two from the second. The probability that there are two black balls and a red ball is:
A)14/45 B)11/45 C)9/54 D)7/15 E)None of these 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