TCS Company Numerical Ability Simple & Compound Interest

he population of a city increases @ 4% p.a. That is an additioanl

annual increase of 4% of the population due to this influx of job

seekers, the % increase in population after 2 years is

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TCS Other Question

Sum of money at compound interest amounts of thrice itself in 3

years. In how many years

will it take 9 times itself.
a cylinder ingot 6cms in diameter and 6 cms in height is and

spheres all of the same

size are made from the material obtained.what is the diameter of each

sphere?