1.

The ratio of males and females in a village is 8 : 5 respectively and the percentage of children among males and females is 30% and 25% respectively. If the number of adult males in the village is 274400, what is the number of female children in the village?1). 675002). 612503). 694004). 76500

Answer»

Let’s assume that the total population of the village is X

? RATIO of male & female in village is = 8 : 5

∴ Number of males in village $(= \frac{8}{{8 + 5}}\; \times \;X = \frac{{8X}}{{13}})$

& Number of FEMALES in village $(= \frac{5}{{5 + 8}}\; \times \;X\; = \frac{{5X}}{{13}})$

Number of male children is 30% among all males

∴ number of male children = (8/13)X × 0.30 = (2.4/13)X

∴ number of adult males is = (8/13)X - (2.4/13)X = (5.6/13)X

Given that number of adult males = 274400

∴ (5.6/13)X = 274400

⇒ X = 637000

Number of female children is 25% among all females

∴ Number of female children = (5/13)X × 0.25 = (1.25/13)X

⇒ Number of female children = (1.25/13)× 637000

⇒ Number of female children = 61250


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