Two successive discounts of 20% and 20% are equivalent to a single discount of :
Two successive discounts of 20% and 20% are equivalent to a single discount of :
[A]34%
[B]36%
[C]40%
[D]42%
36%
Single equivalent discount =
$latex = \left ( 20+20-\frac{20\times 20}{100} \right )\% = 36\%&s=1$
Hence option [B] is correct answer.