Question 148
The population of a town is 9000. It the number of females increases by 5% and the males by 7.5%, what will be the total population after increase. The number of females currently is 3000.
Solution
Number of females = 3000 and number of males = 6000
Females increases by 5% and the males by 7.5%
=> Total population after increase = $$[3000+(\frac{5}{100}\times3000)]+[6000+(\frac{7.5}{100}\times6000)]$$
= $$(3000+150)+(6000+450)$$
= $$9600$$
=> Ans - (A)
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