Vanita bought a watch with 25% discount on the selling price. If the watch cost her Rs. 780, What is the original selling price of the watch?

Solution (By Examveda Team)

Let the original S.P. of the watch be Rs. x.
Then,
$$\eqalign{ & = 75\% {\text{ of }}x = 780 \cr & \Rightarrow x = \left( {\frac{{780 \times 100}}{{75}}} \right) \cr & \,\,\,\,\,\,\,\,\,\,\,\,\, = 1040 \cr & = {\text{Rs}}{\text{. }}1040 \cr} $$