Maths question from Social Forest Worker exam, 2026 by JKSSB
A gadget was sold for Rs. 522 after a 10% discount and then a 10% sales tax was applied on the discounted price. What was the original price of the gadget? (Round to nearest ten)
Last updated Jul 21, 2026
Correct Answer:
Option B —
Rs. 539
Assume the original price of the gadget is 100 units.
1. Applying the Discount
A 10 percent discount reduces the price by 10 units.
The discounted price becomes 90 units (100 units minus 10 units).
2. Applying the Sales Tax
A 10 percent sales tax is calculated on the discounted price of 90 units.
10 percent of 90 units is 9 units.
Adding the tax gives a final selling price of 99 units (90 units plus 9 units).
3. Finding the Original Price
The final selling price is given as Rupees 522, which corresponds to 99 units.
Dividing Rupees 522 by 99 units gives approximately Rupees 5.2727 per unit.
Multiplying 100 units by Rupees 5.2727 gives an original price of approximately Rupees 527.27.
Rounding to the nearest whole rupee gives Rupees 527.
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.
