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UPSC CSE CSAT 2021 · Question 45 · Data interpretation & sufficiency

Consider the following Table:

CSAT 2021 · Q45

Data interpretation & sufficiency Easy

Consider the following Table:

PlayerRuns scored in the First InningsBalls faced in the First InningsRuns scored in the Second InningsBalls faced in the Second Innings
A61991476
B05125085
C15752050
D13551250
A table of runs scored and balls faced by players A, B, C and D in the first and second innings of a Test Match.
From UPSC's question paper.

Who is the fastest run scorer in the Test Match?

Answer & explanation

Answer: (b) B

Speed of scoring is runs per ball over the whole match. B scores 55 runs off 97 balls (about 0.57 a ball), ahead of A (75 off 175), C (35 off 125) and D (25 off 105).

  1. Fastest scorer = highest total runs ÷ total balls across both innings.
  2. A: (61 + 14) ÷ (99 + 76) = 75 ÷ 175 ≈ 0.43 runs per ball.
  3. B: (5 + 50) ÷ (12 + 85) = 55 ÷ 97 ≈ 0.57.
  4. C: 35 ÷ 125 = 0.28; D: 25 ÷ 105 ≈ 0.24.
  5. B has the highest rate, so B is the fastest run scorer.
  6. Check: only B scores more than half a run per ball (55 > 97 ÷ 2).

Remember · Compare ratios of totals, not innings by innings; a simple benchmark (here half a run per ball) often settles it.

Question and answer: UPSC's official GS Paper II (2021, Series A) — paper ↗ · answer key ↗. Explanation: Minimalist IAS, checked 1 Oct 2026 (how we verify). ·

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