UPSC · CSAT · Basic Numeracy

Ratio and Proportion questions with answers

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01Easy · ✓ Verified answer

UPSC Civil Services CSAT practice check: 54 items are divided in the ratio 2:4. How many items are in the smaller share?

  1. 27
  2. 9
  3. 18
  4. 36
Check answer and explanation +
C — 18

The ratio has 6 parts, so each part is 54 ÷ 6 = 9. The smaller share is 2 × 9 = 18. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · Ratio and Proportion; mapped to the published UPSC Civil Services CSAT quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
02Easy · ✓ Verified answer

UPSC Civil Services CSAT high-priority drill: 80 items are divided in the ratio 3:5. How many items are in the smaller share?

  1. 20
  2. 30
  3. 50
  4. 40
Check answer and explanation +
B — 30

The ratio has 8 parts, so each part is 80 ÷ 8 = 10. The smaller share is 3 × 10 = 30. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · Ratio and Proportion; mapped to the published UPSC Civil Services CSAT quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
03Easy · ✓ Verified answer

UPSC Civil Services CSAT foundation revision: 110 items are divided in the ratio 4:6. How many items are in the smaller share?

  1. 44
  2. 66
  3. 55
  4. 33
Check answer and explanation +
A — 44

The ratio has 10 parts, so each part is 110 ÷ 10 = 11. The smaller share is 4 × 11 = 44. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · Ratio and Proportion; mapped to the published UPSC Civil Services CSAT quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
04Easy · ✓ Verified answer

UPSC Civil Services CSAT speed-building set: 144 items are divided in the ratio 5:7. How many items are in the smaller share?

  1. 84
  2. 72
  3. 48
  4. 60
Check answer and explanation +
D — 60

The ratio has 12 parts, so each part is 144 ÷ 12 = 12. The smaller share is 5 × 12 = 60. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · Ratio and Proportion; mapped to the published UPSC Civil Services CSAT quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
05Easy · ✓ Verified answer

UPSC Civil Services CSAT accuracy checkpoint: 78 items are divided in the ratio 2:4. How many items are in the smaller share?

  1. 39
  2. 13
  3. 26
  4. 52
Check answer and explanation +
C — 26

The ratio has 6 parts, so each part is 78 ÷ 6 = 13. The smaller share is 2 × 13 = 26. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · Ratio and Proportion; mapped to the published UPSC Civil Services CSAT quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
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