Allied & ICAR Exam Bank • ALLIED_1351 MCQ • 1 Mark

Section 8: General Aptitude

Quantitative Aptitude

Subtopic: Numerical Computation

Question Statement:

If 15 workers working 8 hours a day can complete an earthwork excavation in 18 days, how many days will 20 workers take to complete the same work if they work 6 hours a day?

Options:

  • (A) 18 days
  • (B) 16 days
  • (C) 15 days
  • (D) 20 days

Answer Key:

A

Step-by-Step Solution & Explanation

Total work = $15 \times 8 \times 18 = 2160$ worker-hours. With 20 workers working 6 hours a day, daily output = $20 \times 6 = 120$ worker-hours. Days required = $2160 / 120 = 18$ days.
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