Question

if a ratio b is equal 5 ratio 7 and B ratio C is equal 14 ratio 15 find a ratio c

Answer 1

if a : b = 5 : 7 , b : c = 14 : 15

then , a : c = ?

.

a : b = 5 : 7

.

a / b = 5 / 7 -------------(1)

.

b : c = 14 : 15

.

b / c = 14 / 15-----------(2)
-----------------

.

on multiplying (1) and (2) , we get





.

(a / b ) × (b /c ) = (5 / 7 ) × ( 14 / 15 )

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a / c = (5 × 14) /(7 × 15)

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a / c = 70 / 105

.

a / c = 10 / 15

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a / c = 2 / 3

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a : c = 2 : 3

.
Answer : a : c = 2 : 3

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Answer 2

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