Question
In a classroom there are 11 boys and 9 girls. Average
age of each boy and each girl is 18 years and 15 years respectively. The sum of ages of all the boys, girls and a teacher whose age is ‘x’ years is 380 years. Find the value of ‘x’.Solution
Sum of ages of all boys = 11 x 18 = 198 Sum of ages of all girls = 9 x 15 = 135 So, 198 + 135 + x = 380 => x = 47
More Age Questions
In each of the following number series, one term is wrong. Find the wrong term.
3, 10, 26, 58, 130, 272
32, 48, 72, 108, 162, 248
Find the wrong number in the given number series.
1215, 810, 540, 360, 240, 150
8, 12, 23, 40, 66, 103
4, 8, 24, 96, 485, 2880, 20160
1, 4, 20, 126, 1026, 10170
- 82, 65, 84, 61, 91, 59
Find the wrong number in the given number series.
26, 38, 60, 110, 206, 398
5000, 4050, 3240, 2268, 1360.8, 680.4
Find the wrong term in the given series below.
36, 20, 32, 72, 289, 1302.5
