Question

if 581 is divided amomg A,B,C so that4,5,7 what is share of work in all

Answer 1

Let the work distributed among A, B, C be 4x, 5x, 7x.
4x+5x+7x=581
16x=581
x=581/16
x=36.3125
work of A = 4x
=4×36.3125
=145.25
work of B = 5x
=5×36.3125
= 181.5625
work of C = 7×36.3125
= 254.1875