Question

Find a :c when (i) a : b= 2:5 and b:c= 4:7, and (ii) a : b=3/2:4/3 and b:c=5/3:5
plz give me the answer with correct statements plz​

Answer 1

Answer:

(i) Given,

a:b = 2:5

b:c = 4:7

Therefore,

If we multiply a:b by b:c, we get a:c.

So, a/b × b/c = 2/5 × 4/7 = 8/35

Hence, a : c = 8 : 35.

(ii) Given,

a:b = 3/2 : 4/3 = 9:8

b:c = 5/3 : 5 = 1 : 3

Similarly like (i),

a/b × b/c = 9/8 × 1/3 = 3/8

Hence, a : c = 3 : 8.