Question

Two successive discounts of 30% and 25% are equivalent to a single discount of?​

Answer 1

Given:

• Two successive discounts of 30% and 25%

To Find:

• A single discount

Solution:

To find the single discount  following formula is used

Equivalent Discount $= x+y-\frac{x\times y}{100}$

Here,  

         $x = 30 \%$

        $y = 25\%$

Putting above value in the formula

Equivalent Discount    $= 30+25-\frac{30\times 25}{100}$

                                     $= 55 - \frac{30}{4}$

                                      $=55 - 7.5 \\= 47.5 \%$

Thus, Equivalent Discount  $= 47.5\%$