### Two successive discount of 10% and 20% are equivalent to a single discount of:

A. 30% B. 28% C. 26% D. 25% Answer: Option B

### Solution(By Apex Team)

Use Formula, Equivalent Discount $=(A+B)-\frac{A B}{100}$ where A = First Discount, B =Second Discount. Equivalent Discount = (20 + 10) – $\frac{20 \times 10}{100}$ Equivalent Discount = 30 – 2 = 28% Second Method 100 == 20%(disc.) ⇒ 80 == 10%(disc.) ⇒ 72 Equivalent discount = 28%

## Related Questions on Profit and Loss

A. 45 : 56
B. 45 : 51
C. 47 : 56
D. 47 : 51

A. Rs. 2600
B. Rs. 2700
C. Rs. 2800
D. Rs. 3000

### A sells an article to B at a profit of 10% B sells the article back to A at a loss of 10%. In this transaction:

A. A neither losses nor gains
B. A makes a profit of 11%
C. A makes a profit of 20%
D. B loses 20%