Question
The ratio of males and females in a zoo is 4:5
respectively and the percentage of children among males and the percentage of children among females are 15% and 25% respectively. If the number of adult females in the zoo is 4875 then what will be the total population in a zoo?Solution
Let the number of males and females be 4x and 5x respectively. Percentage of children among females = 25% So, 75% of females are adults, => 75/100 × 5x = 4875 => 5x = 6500 => x = 1300 Total population = 4x + 5x = 9x = 9 × 1300 = 11700
4Â Â Â Â Â Â Â Â Â Â Â Â Â Â 7Â Â Â Â Â Â Â Â Â Â Â Â Â Â 24Â Â Â Â Â Â Â Â Â Â Â 91Â Â Â Â Â Â Â Â Â Â Â 462Â Â Â Â Â Â Â Â Â 2763
18Â Â Â ...
5 11 32 65 ? 389
...8 6 2 ? -1 9.5
...40 30 20 ? 7.5 4.375
86 36 ? 7 7.5 0.75
38 18 16 28 ? 816
21, 63, 315, ?, 19845, 218295
14 26 50 98 194 ?
...112 ? 336 840 2520 8820
...1 9 64 255 755 1835
...