Discussion
Q. |
The price of petrol is increased by 30% and then decreased by 20%. What is the net effect on its price? |
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A. 4% decrease |
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B. 4% increase |
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C. 2% increase |
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D. 6% increase |
Correct Option is B
Explanation:
Apply AB Method.
30 - 20 - 30*20/100 = 4
4% increase