-
Price of a commodity has increased by 60%. By what percent must a consumer reduce the consumption of the commodity so as not to increase the expenditure ?
-
- 37%
- 37.5%
- 40.5%
- 60%
Correct Option: B
If the reduction in consumption be x%, then
| 60 - x - | = 0 | 100 |
| ⇒ 60 - x - | = 0 | 5 |
⇒ 300 - 5x - 3x = 0
⇒ 8x = 300
| ⇒ x = | = 37.5% | 8 |
Aliter : Using Rule 8,
Required percentage
| = | × 100% | 160 |
| = | = | = 37.5% | 8 | 2 |
