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20% discount is offered on an item. By applying a promo code Rishi wins 4% cash back. What is the equivalent single discount?
If there is two discount x and y then
Equivalent Discount = $$x+y-\frac{\left(x\times\ y\right)}{100}$$
x = 20%
y = 4%
Then,
Equivalent discount = $$20+4-\frac{\left(20\times\ 4\right)}{100}=23.8\%$$
Hence, Option B is correct.
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