Two consecutive discounts x% and y% are equivalent to the

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Two consecutive discounts x% and y% are equivalent to the single discount of

1. x − y + xy %
  100
2. x + y + xy %
  100
3. x − y − xy %
  100
4. x + y − xy %
  100

Correct Option: D

As we know that ,

Equivalent single discount =		D₁ + D₂ −	D₁ × D₂		%
			100

Single equivalent discount for consecutive discounts of x% and y%

=		x + y −	xy		%
			100