Allied & ICAR Exam Bank • ALLIED_2503 NAT • 2 Marks

Section 8: General Aptitude

Quantitative Aptitude

Subtopic: Numerical Computation

Question Statement:

A cask full of wine contains 80 liters. Eight liters are drawn out and filled with water. This operation is performed a total of 3 times. The volume of pure wine remaining in the cask in liters (rounded to one decimal place) is:

Answer Key:

58.3

Step-by-Step Solution & Explanation

Remaining wine = $80 \times (1 - 8/80)^3 = 80 \times (0.9)^3 = 80 \times 0.729 = 58.32$ liters $\approx 58.3$ liters.
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