A wrist watch is available at a discount of 9%. If the list price of the watch is ₹ 1,400, find the discount given and the selling price of the watch.

Given:

M.P. of the watch = ₹ 1,400

Discount = 9%

$\text{Discount\%} = \dfrac{\text{Discount}}{\text{M.P.}}\times 100\\[1em] \Rightarrow 9 = \dfrac{\text{Discount}}{1400}\times 100\\[1em] \Rightarrow \text{Discount} = \dfrac{9 \times 1,400}{100}\\[1em] = \dfrac{12,600}{100}\\[1em] = ₹ 126\\[1em]$

As we know,

$\text{Discount} = \text{M.P. - S.P}\\[1em] \Rightarrow 126 = 1,400 - \text{S.P.}\\[1em] \Rightarrow \text{S.P.} = 1,400 - 126\\[1em] = ₹ 1,274\\[1em]$

Hence, discount = ₹ 126 and S.P. = ₹ 1,274