Q. What single discount is equivalent to two successive discounts of 20% and 15%?
Answer:
32%
Notes: Single equivalent discount =
$latex = \left ( x+y-\frac{x\times y}{100} \right )\%&s=1$
$latex = \left ( 20+15-\frac{20\times 15}{100} \right )\% = 32\%&s=1$
Hence option [B] is correct answer.