Question

3. IfA: B = 3 : 7 and B : C= 7:8, find A : C. please answer
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Answer 1

Answer:

3:8

Step-by-step explanation:

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Answer 2

Answer:

A:C = 3:8

Step-by-step explanation:

Given that, A:B = 3:7, B:C = 7:8

$\frac{A}{B} = \frac{3}{7}$ .  .  .  .  .  .  .  .  .  . (i)

$\frac{B}{C} = \frac{7}{8}$ .  .  .  .  .  .  .  .  .  . (ii)

Multiplying equation Ii) and equation (ii):

$\frac{A}{B} . \frac{B}{C} = \frac{3}{7}.\frac{7}{8}$

$=>\frac{A}{C} = \frac{3}{8}$

∴ A:C = 3:8