Question

Ratio of males to females in village ‘A’ and village ‘B’ is 9:10 and 7:8, respectively and number of females in village ‘B’ is 25% more than that in village ‘A’. Find difference between number of males in villages ‘A’ and ‘B’ if number of males in village ‘B’ is 700.

A 124 Correct Answer Incorrect Answer
B 104 Correct Answer Incorrect Answer
C 120 Correct Answer Incorrect Answer
D 134 Correct Answer Incorrect Answer

Solution

Number of females in village ‘B’ = 8/7 × 700 = 800 Number of females in village ‘A’ = 800/1.25 = 640 Number of males in village ‘A’ = 9/10 × 640 = 576 Desired difference = 700– 576= 124

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