Question Bank • QB_GA_077 NAT • 2 Marks

Section 8: General Aptitude

Quantitative Aptitude

Subtopic: Numerical Computation

Question Statement:

A contractor estimates that 15 workers can complete an earthen bund construction in 24 days. If the project must be finished in 18 days, calculate the total number of additional workers required.

Answer Key:

5

Step-by-Step Solution & Explanation

Total work in worker-days: $W = 15 \times 24 = 360\text{ worker-days}$ For completion in 18 days: $\text{Required workers} = \frac{360}{18} = 20\text{ workers}$ Additional workers needed: $\Delta W = 20 - 15 = 5$
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