SSC CGL 16 Aug 2015 Shift 1 Paper

Question : 127 of 200

Marks: +1, -0

What must be added to each term of the ratio 2 : 5 so that it may equal to 5 : 6 ?

Solution:

Let x be added to each term .
According to the question,

{2+x}/{5+x}

5/6

⇒ 12 + 6x = 25 + 5x
⇒ 6x – 5x = 25 – 12
⇒ x = 13

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