ChallengeA single discount equivalent to three successive discounts of – InterviewSolution

1.

ChallengeA single discount equivalent to three successive discounts of 20%, 25% and 10% is(a) 55%(b) 50%(c) 48%(d) 46%

Answer»

(100-x)/100 = (100-20)/100 * (100-25)/100 * (100-10)/100=> 100-x = (4/5)*(3/4)*90=> 100-x = 54=> x = 46%

(100-x)/100 = (100-20)/100 * (100-25)/100 * (100-10)/100=> 100-x = (4/5)*(3/4)*90=> 100-x = 54=> x = 46%

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