Logical Reasoning Percentages, Ratios & Unit Calculations KMU 2024
PMDC Verified Question 19 of 19
A store offers a 10% discount on all items. After applying the discount, the price of an item is Rs. 450. What was the original price of the item?
A
Rs. 490
B
Rs. 495
C
Rs. 500
D
Rs. 505
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Rs. 500
Concept: Reverse Percentage Discount Calculation.

Formula: \(\text{Original Price} = \frac{\text{Discounted Price}}{1 - d}\)

Solution:

  • \(0.90 \times P_{\text{orig}} = 450 \implies P_{\text{orig}} = \frac{450}{0.90} = \text{Rs. } 500\).


Why other options are incorrect:

• Option B: Simply adds 10% of 450 (45) to get 495, which is mathematically incorrect.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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