Question

The difference between the value of the number increased by 10% and the value of the number decreased by 20% is 72. Find the number.

A 150 Correct Answer Incorrect Answer
B 280 Correct Answer Incorrect Answer
C 240 Correct Answer Incorrect Answer
D 180 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

Let the number be x According to the question x ×  110/100- x ×  80/100=72  110x - 80x = 7200 30x = 7200 x = 240

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