Question

If 7A=5B=2C . Find A:B:C.

Answer 1

7a = 2c

$a = \frac{2c}{7} \\ \\ 5b = 2c \\ b = \frac{2c}{5}$
a:b:c = 2c/7:2c/5:2c
=1/7:1/5:1
=5:7:35