ECZ 2014 · O-Level Paper 1 — Sets
In the Venn diagram shown, 22 pupils take Physics and 20 pupils take Mathematics. Find x and y.
- A. x = 7, y = 2
- B. x = 7, y = 3
- C. x = 11, y = 2
- D. x = 14, y = 2
Verified working — step 1
Physics: 2x + 8 = 22, so x = 7. Mathematics: 3y + x + 2y + 3 = 20, i.e. 5y + 7 + 3 = 20, so 5y = 10 and y = …The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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