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Mathematics

Suppose the number of people in Cumilla city is 1 million. If the number of males increases by 10% and the number of females decreases by 6%, then the number of people in city remains unchanged. What are the numbers of male and female in that city?

(Percentage)

Created: 2 years ago | Updated: 1 year ago
Updated: 1 year ago
Ans :

Let, number of male be x Number of female be = (1000000 - x) According to question 110% of x + 94% of (1000000 - x) = 1000000 =110X100+94(1000000-X)100=1000000 =11X10+9.4(1000000-X)10=1000000 =11X+9400000-9.4X=10000000 =1.6X=10000000-9400000=600000 X=6000001.6=375000 Number of male = 3,75,000 Number of female = 10,00,000-3,75,000 =6,25,000

1 year ago

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