When the pirce of an item was reduced by 20%, its sale increased by x%. If there is an increase of 25% in receipt of the revenue, then the value of x is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 56.25
Let
| S.no | Sale | Rate\kg | Revenue |
| 1 | 100x | 100y | 10000xy |
| 2. | ? | 80y | 12500xy |
In second case the sale become = 12500xy/80y = 156.25x
% increase = (156.25x - 100x)/100x × 100 = 56.25%