SSC GD 6th March 2019 Shift-2

Question 66

If $$\frac{a}{b}=\frac{7}{9},\frac{b}{c}=\frac{3}{5}$$, then the value of a:b:c is

Solution

Given, a : b = 7 : 9 and b : c = 3 : 5
Multiplying b : c by 3 
Then, b : c = 9 : 15
Therefore, a : b : c = 7 : 9 : 15.

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