If decreasing 70 by x\% yields the same result as increasing 60 by x\% , then x\% of 91 is: - Quantitative Aptitude MCQ SSC CGL 2026 | ExamTest.live

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If decreasing 70 by x % yields the same result as increasing 60 by x %, then x % of 91 is:

Solution & Step-by-step Explanation

According to the question: 70 \times (1 - \frac{x}{100}) = 60 \times (1 + \frac{x}{100}) 70 - \frac{70 x}{100} = 60 + \frac{60 x}{100} 70 - 60 = \frac{60 x}{100} + \frac{70 x}{100} 10 = \frac{130 x}{100} x = \frac{100}{13} Now, we need to find x % of 91 : Value = \frac{x}{100} \times 91 = \frac{\frac{100}{13}}{100} \times 91 = \frac{1}{13} \times 91 = 7

Try it yourself before checking the explanation above.

If decreasing 70 by x % yields the same result as increasing 60 by x %, then x % of 91 is:

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