Total population of city P and Q is 3150 and 3640 respectively. If the ratio of number of males to females in city is P and Q is 5:4 and 4:3 respectively, then find the difference between number of males in city P and number of females in city Q.
Number of males in city P = 5/9 x 3150 = 1750 & number of females in city Q = 3/7 x 3640 = 1560 Desired difference = 1750 – 1560 = 190
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