2015-II-09 – Solving Master

Ans: B
Let

$ x

be the price of the souvenir. Then the new price

$\begin{array}{cl} = & x \times (1 + 70 %) \times (1 - 60 %) \\ = & $ 0.68 x \end{array}$

Then, the percentage change in the price of the souvenir

$\begin{array}{cl} = & \frac{0.68 x - x}{x} \times 100 % \\ = & \frac{- 0.32 x}{x} \times 100 % \\ = & - 0.32 \times 100 % \\ = & - 32 % \end{array}$