Data Interpretation (Table, Bar, Line, Pie, Caselet) — Practice

Question 1

A table shows units sold: P=120, Q=80, R=150, S=90 at prices ₹250, ₹400, ₹200, ₹500 respectively. Total revenue from brand S is:
(a) ₹40,000  (b) ₹45,000  (c) ₹50,000  (d) ₹36,000

Accepted Answer

S revenue = 90 × 500 = ₹45,000.

Answer: (b) ₹45,000. Straight multiplication — do these 'single-cell' questions to warm up the set.

Question 2

Using the same table (P: 120 units @₹250; Q: 80 @₹400), Q's revenue is approximately what % of P's?
(a) 107%  (b) 93%  (c) 71%  (d) 120%

Accepted Answer

P = 120×250 = 30,000; Q = 80×400 = 32,000.

Q/P = 32,000/30,000 = 16/15 ≈ 106.7% ≈ 107%.

Answer: (a) 107%. Cancel first (32/30 = 16/15), then convert.

Question 3

A company's sales were ₹250 cr in 2022 and ₹300 cr in 2023. The percentage growth is:
(a) 16.67%  (b) 20%  (c) 25%  (d) 50%

Accepted Answer

%Δ = (300 − 250)/250 × 100 = 50/250 × 100 = 20%.

Answer: (b) 20%. The trap is (a) 16.67% — dividing by the new value 300 instead of the old 250.

Question 4

In a pie chart of 4,800 students by stream, Commerce is 25% and Arts is 15%. How many more students are in Commerce than Arts?
(a) 360  (b) 420  (c) 480  (d) 300

Accepted Answer

Difference in share = 25% − 15% = 10% of 4,800 = 480.

Answer: (c) 480. A percentage-point gap is a direct fraction of the total — no need to compute each stream separately.

Question 5

In a college of 1,200 students, 45% opted for Science. Among Science students the boys:girls ratio is 7:5. The number of Science girls is:
(a) 225  (b) 315  (c) 270  (d) 240

Accepted Answer

Science = 45% of 1,200 = 540. Boys:girls = 7:5 (12 parts).

Girls = 540 × 5/12 = 225.

Answer: (a) 225. Build the tree (1200 → 540 → 315 boys / 225 girls) before reading the question.

Question 6

Production (in tonnes) was 2021: 400, 2022: 500, 2023: 600. The 2023 output is what % of the average of 2021 and 2022?
(a) 120%  (b) 133.3%  (c) 150%  (d) 125%

Accepted Answer

Average of 2021 & 2022 = (400 + 500)/2 = 450.

2023 as % of 450 = 600/450 × 100 = 133.3%.

Answer: (b) 133.3%. Compute the inner average FIRST, then the outer percentage.

Question 7

A table's 2023 total is blank but equals the 2022 total of 3,600. Of the 2023 total, branch A has 1,200 and branch B has 900. Branch C (the only other branch) has:
(a) 1,300  (b) 1,500  (c) 1,200  (d) 900

Accepted Answer

2023 total = 3,600 (given equal to 2022). C = 3,600 − 1,200 − 900 = 1,500.

Answer: (b) 1,500. Missing DI: find the one linking clue (total = 3,600), then the blank cell cascades.

Practice — Data Interpretation (Table, Bar, Line, Pie, Caselet)

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