Question

Please tell about it

Answer 1

let A=4x, B=6x, C=7x(ratio of A,B and C is 4:6:7)
B=5.40

6x=5.40
x=5.40/6=0.9

A=4x=4×0.9=3.60
B=5.40
C=7x=7×0.9=6.3