Question

a:b=2:3,b:c=5:7and c is 42 what is a=?

Answer 1

Answer:

I think that a=20

hope it halp you.

Answer 2

Step-by-step explanation:

a:b

b: c.

= 2:3

5: 7

a : b : c = 10 : 15 : 21

21x = 42=> x=2 So a = 10(2) =20