Question 117

If decreasing 70 by X percent yields the same result as increasing 60 by X percent, then X percent of 50 is

Solution

Given that,
$$70-\dfrac{70x}{100} = 60+\dfrac{60x}{100}$$
Thus, $$7000-70x = 6000+60x$$
=> $$1000 = 130x$$
Thus, $$x\approx 7.7$$
Thus, $$7.7\% of 50 = $$dfrac{7.7*50}{100} \approx 3.84$$
Hence, option A is the correct answer.


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