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SSC CGL 2018 PYQ — Question 13

SSC CGL Tier II Quant - 09/03/2018 • Quantitative Aptitude • Q13

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If y2 = y + 7, then what is the value of y3 ?

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Correct answer: A

Explanation

The correct option is 1.

y2 = y + 7.

or, y3 = y (y + 7) .

or, y3 = (y2 + 7y).

Now, given that y2 = y + 7.

So, y3 = y + 7 + 7y.

or, y3 = 7 + 8y.

A is correct choice.