Question

Decrease $210$by $15\%$

Answer 1

STEP 1:First calculate the $15\%$ of $210$

$15\%$ of $210$$=$$\frac{15}{100}\times 210$

$$\begin{gathered} =\frac{3}{2}\times 21 \\ =\frac{63}{2} \\ =31.5 \end{gathered}$$

STEP 2: Now subtract $31.5$ from $210$

$$\begin{gathered} =210-31.5 \\ =178.5 \end{gathered}$$

Hence, when we decrease $210$by $15\%$ we will get $178.5$.