Question
In a zoo, 25% of the people are males. 40% of the
remaining are females and the remaining 720 are children’s. Find the total number of people in a zoo.Solution
Let the total number of people be x. Male = 25% of x = x/4 Remaining = x - x/4 = 3x/4 Female = 40% of (3x/4) = 3x/10 Now, children left = x - (x/4 + 3x/10) = 720 => 9x/20 = 720 => x = 720 x (20/9) => x = 1600 Total number of people in a zoo is 1600.
More Percentage Questions
2, 6, ?, 20, 30, 42
15, 31, 67, 131, ?, 375
18, 21, 45, 138, 555, ?
178    168    148   ?     78    28
Which of the following number will replace the question mark (?) and complete the given number series?
4, 5, 12, 39, 160, ?
106, 124, 88, 142, ?, 160
18, 30, 54, 90, 138, ?
What will come in place of the question mark (?) in the following series?
130, 158, 214, 298, ?, 550
Find the missing number in the given number series.
3, 7, 18, 38, 69, ?- What will come in place of the question mark (?) in the following series?
29, 32, 41, 68, ?, 392
Relevant for Exams:
