Question

if A:B =2:3 and B:C=5:7 then A:C is
a)15:19
b)12:17
c)21:15
d)10:21​

Answer 1

A:B= 2:3 ×5=10:15

B:C=5:7 ×3=15:21

A:C= 10:21

Answer 2

Answer:

option d) 10:21

Step-by-step explanation:

B is common in both so i simply multiplied both the numbers of b given.