52 is to be divided into two parts such that the sum of 10 times the first and 22 times the second is 780 . the bigger part is :
"explanation : let the two parts be ( 52 - x ) and x . then , 10 ( 52 - x ) + 22 x = 780 = > 12 x = 260 = > x = 21.66 . bigger part = ( 52 - x ) = 30.33 . answer : a ) 30.33"
subtract(52, divide(subtract(780, multiply(52, 10)), subtract(22, 10)))