Staff Selection Commission Quantitative Aptitude — Question 368

Question

If 40% of 80% of a number is 256, find the number

1. 600
2. 700
3. 800
4. 900

Correct answer

C — 800

Explanation (English)

0.4 × 0.8 × x = 256. 0.32x = 256. x = 800

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