-
If the successive discounts be 20 %, 10 % and 5 %, then the single equivalent rate of discount is :
-
- 31.6%
- 31.5%
- 31%
- 31.4%
Correct Option: A
As we know that ,
| Equivalent single discount = |  | D1 + D2 − |  | % | |
| 100 |
Single equivalent discount for 20% and 10%
| = | | 20 + 10 − | | % | |
| 100 |
= (30 – 2)% = 28%
Single equivalent discount for 28% and 5%
| = | | 28 + 5 − | | % | |
| 100 |
| = | | 33 − | | = 31.6% | |
| 100 |
