Paper 1 · Data Interpretation
UGC NET December 2021 June 2022 (11.07.2022) Shift-II
Data
Number of persons (in thousands) affected by COVID-19 in five cities A–E and affected Male:Female ratio.
| City | Affected (thousands) | Male:Female |
|---|---|---|
| A | 64 | 5:3 |
| B | 54 | 5:4 |
| C | 16 | 3:1 |
| D | 48 | 7:5 |
| E | 27 | 2:1 |
Find the average number of females who were affected by COVID-19 across all the five cities.
A14200
B12600
C16200 ✓ Correct
D12200
Correct answer: (C) 16200 — Females in City A are 3 by 8 of 64000, which is 24000.
Explanation
★Females in City A are 3 by 8 of 64000, which is 24000.
★Females in City B are 4 by 9 of 54000, which is 24000.
★Females in City C are 1 by 4 of 16000, which is 4000.
★Females in City D are 5 by 12 of 48000, which is 20000, and in City E 1 by 3 of 27000, which is 9000.
★The total of the female figures is 81000.
★Dividing 81000 by the five cities gives an average of 16200.
★The average of grouped data is the total of the values divided by the number of groups.
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