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 24:25:30

D 20:35:42

Solution

Correct Answer: Option D

a:b= 4:7= 20:35
b:c= 5:6= 35:42
∴a:b:c= 20:35:42