a bag contains an equal number of one rupee , 50 paise and 25 paise coins respectively . if the total value is 140 , how many coins of each type are there ?
let number of each type of coin = x . then , 1 × x + . 50 × x + . 25 x = 140 ⇒ 1.75 x = 140 ⇒ x = 80 coins answer d
divide(140, add(add(inverse(const_4), inverse(const_2)), const_1))