56 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 :	Choose the correct choice from the following options:
A) 33.0
B) 37.66
C) 32.1
D) 31.23
E) 19

Rationale: explanation : let the two parts be ( 56 - x ) and x . then , 10 ( 56 - x ) + 22 x = 780 = > 12 x = 220 = > x = 20 . bigger part = ( 56 - x ) = 37.66 . answer : b ) 37.66
Answer: B