Logical Reasoning Percentages, Ratios & Unit Calculations KMU 2025
PMDC Verified Question 3 of 19
If five boxes of soap weigh 75 kilos and each box when empty weighs three kilos. What is the total weight of the soaps?
A
60 kg
B
15 kg
C
30 kg
D
45 kg
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: 60 kg
Concept: Quantitative Net Weight Problems.

Formula: \(\text{Net Soap Weight} = \text{Gross Weight} - (\text{Number of Boxes} \times \text{Empty Weight per Box})\)

Solution:

  • Empty box weight = \(5 \times 3\text{ kg} = 15\text{ kg}\).


  • Soap weight = \(75\text{ kg} - 15\text{ kg} = 60\text{ kg}\).


Why other options are incorrect:

• Option B: Is the weight of the empty boxes alone.

• Option D: Incorrectly calculates box weight as 6 kg each.

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.

Previous Question All Percentages, Ratios & Unit Calculations MCQs Next Question

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.

Enter Arena Sprint iOS App Android App