Question

if 45% of 150 + 35% of 170 = x% of 317.5 find the value of x

Answer 1

45%of 150 = 67.5 + 35% of 170=59.5
67.5 + 59.5 = 127
127 = x% of317. 5
127 = 3.175x
127/3.175 = x
40 = x