Question
In a zoo, 30% of the people are males. 50% of the
remaining are females and the remaining 630 are children. Find the total number of people in a zoo.Solution
Let the total number of people be x. Male = 30% of x = 3x/10 Remaining = x - 3x/10 = 7x/10 Female = 50% of (7x/10) = 7x/20 Now, children left = x - (3x/10 + 7x/20) = 630 => 7x/20 = 630 => x = 1800 Total number of people in a zoo is 1800.
351Â Â Â 261Â Â Â 181Â Â Â 111Â Â Â 51Â Â Â ?
Find the 31st term of the series 25, 29, 33……
632, 560, 494, 434, ?, 332
1331      1000            729       512       ?             216
...2556   636    156    ?    6
3 5 15 75 1125 ?
...1. In series II, if ‘x’ is the right term, then find which of the following statement(s) are true.
I. x/124 is a factor 6 and 8.
73920, 9240, ?, 220, 44, 11
12 78 385 ? 4629 9260
...A number series is given below, which follows a specific pattern. If 'A' represents the 'x'th term and 'B' represents ...
