Question

a) 27:36
7. Ifa: b= 4:5 and b:c=6: 7, find a : cand a : b:c.​

Answer 1

Given :

• a : b = 4 : 5

• b : c =6 : 7

To Find :

• a : b : c

Solution :

a : b :: b : c = 4 : 5 :: 6 : 7

⇒ a/b :: b/c = 4/5 :: 6/7

_____________________

a : b : c = product of numerator : 1st denominator × 2nd numerator : product of denominator

⇒ a : b : c = 4 × 6 : 5 × 6 : 5 × 7

⇒ a : b : c = 24 : 30 : 35

★ Value of a : b : c is 24 : 30 : 35

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