Paper 1 · Data Interpretation
UGC NET December 2023 (08.12.2023) Shift-I
Passage
The following table shows the number of employees working in five different colleges A to E, along with the ratio of Males to Females (M:F) among them. Based on the data in the table, answer the questions that follow.
College A: 3040 employees, ratio 13:6.
College B: 3360 employees, ratio 4:3.
College C: 2920 employees, ratio 9:11.
College D: 2760 employees, ratio 10:13.
College E: 2840 employees, ratio 13:7.
Considering all four years together, what is the average number of boys who appeared from school E?
A424
B434
C438 ✓ Correct
D454
Correct answer: (C) 438 — The average number of boys from school E is 438.
Explanation
★The average number of boys from school E is 438.
★In each year, boys minus girls percent of the total equals the given difference.
★In 2019 the difference 280 is 50 percent of the total, so boys at 75 percent are 420.
★In 2020 the difference 136 is 20 percent, so boys at 60 percent are 408.
★In 2021 boys are 462 and in 2022 boys are 462.
★The average of 420, 408, 462 and 462 is 438.
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