Question

if a : b = 3 : 2 and b: c = 7:9, find a : c
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Answer 1

Answer:

Given:

A ∶ B = 3 ∶ 2

B ∶ C = 7 ∶ 9

Calculation:

According to the question, we have

A ∶ B = 3 ∶ 2     ----(1)

B ∶ C = 7 ∶ 9      ----(2)

From equation (1) and (2), we get

A ∶ B ∶ C = 3 ∶ 2+7 ∶ 9

Required ratio = A ∶ C = 3 ∶ 9

⇒ 1 ∶ 3

∴ A ∶ C is equal to 1 ∶ 3.

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