If a number is increased by 25 and the resulting number is decreased by 25 Then the percentage incre...........

Quant (SSC) Percentage

If a number is increased by 25% and the resulting number is decreased by 25%. Then the percentage increase or decrease finally is

No change

Decreased by 6 1/4%

Increased by 6 1/4%

Increased by 6%

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Explanation:

To solve this question, we can apply a short trick approach;
Net% effect = (x + y + xy/100%)
Increase or decrease, according to the +ve or –ve sign respectively.
Given;
Increased Number = x = 25%
Decreased Number = y = – 25%
By the short trick approach, we get
= (25 - 25 - 25 x 25/100) = -25/4
= - 6 1/4