The salary of gopal was increased by 10% and then the increased salary was decreased by 10%. Find the net increase or decrease percent in his original salary .
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1% is the net salary decrease..
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Let his salary be Rs. 100.
10% increase of Rs. 100
10/100 × Rs. 100 = Rs. 10
Rs. 100 + Rs. 10 = Rs. 110
10% decrease in Rs. 110
10/100 × Rs. 110 = Rs 11
Rs. 110 - Rs. 11 = Rs. 99
It is decrease in salary since Rs. 99 < Rs. 100
Net decrease percent = (100-99)/100 = 1%
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10% increase of Rs. 100
10/100 × Rs. 100 = Rs. 10
Rs. 100 + Rs. 10 = Rs. 110
10% decrease in Rs. 110
10/100 × Rs. 110 = Rs 11
Rs. 110 - Rs. 11 = Rs. 99
It is decrease in salary since Rs. 99 < Rs. 100
Net decrease percent = (100-99)/100 = 1%
Hope you like it
✌✌
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