the present population of a town is 200 . population increase rate is 10 % p . a . find the population of town after 1 years ?
"p = 200 r = 10 % required population of town = p * ( 1 + r / 100 ) ^ t = 200 * ( 1 + 10 / 100 ) = 200 * ( 11 / 10 ) = 220 ( approximately ) answer is d"
add(200, divide(multiply(200, 10), const_100))