a :b =4:7 এবং b :c=5: 6 হলে, a, b, c = কত?

a :b =4:7 এবং b :c=5: 6 হলে, a, b, c = কত?

A 4:7:6

B 20:35:24

C 20:35:45

D 24:35:30

Solution

Correct Answer: Option C

a:b=4:7=(4x5):(7×5)=20:35

b: c=5:6=(5×7):(6x7)=35:42

a:b:C=20:35:42