Question

If c/d - a/b =x, a =2c, and b=5d, what is the value of c/d in terms of x?

a) 2/3 x
b) 3/4 x
c) 4/3 x
d) 5/3 x

Answer 1

d)

Explanation:

c/d - 2c/5d = 5c/5d - 2c/5d = 3c/5d = x

3c/d = 5x

c/d = 5x/3 = 5/3 × x