Explanation:
A=40years
no. = 15m
total will be 40×15 = 600men
women 10×10 = 100 women
total average = 700÷25 = 28
Answer:
28
15 × 40= 600
10 × 10 = 100
600 + 100 = 700
15 + 10= 25
700÷25= 28
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