Question
Ratio of males to females in village ‘A’ and village
‘B’ is 2:5 and 9:10, 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 900.Solution
Number of females in village ‘B’ = 10/9 × 900 = 1000 Number of females in village ‘A’ = 1000/1.25 = 800 Number of males in village ‘A’ = 2/5 × 800 = 320 Desired difference = 800 – 320 = 580
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