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Percentage distribution of total population of six cities A–F, and percentage of adults within each. Population of City A = 257400.

CityPopulation (%)Adults (%)
A23.477
B21.668
C8.473
D18.975
E17.569
F10.272

The non-adult population of City F is

A33448
B32040
C30102
D31416 ✓ Correct
Correct answer: (D) 31416
Explanation

The answer is 31416.

Since City A is 23.4 percent of the total and equals 257400, the total population is 1100000.

City F is 10.2 percent of the total, which is 112200.

Its non-adult share is 100 minus 72, which is 28 percent.

So the non-adult population is 28 percent of 112200.

That is 31416.

So the answer is 31416.

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