Question

find a single discount equivalent to two successive discounts 30% and 10%

Answer 1

$\frac{70 \times 90}{100 \times 100} \\ \\ = > \frac{63}{100}$

On subtracting 63 from 100 : 100 - 63 = 37

Thus, 37% discount is equivalent to two successive discounts 30% and 10%