Question
In a classroom there are 12 boys and 10 girls. Average
age of each boy and each girl is 22 years and 18 years respectively. The sum of ages of all the boys, girls and a teacher whose age is ‘x’ years is 500 years. Find the value of ‘x’.Solution
Sum of ages of all boys = 12 x 22 = 264 Sum of ages of all girls = 10 x 18 = 180 So, 264 + 180 + x = 500 => x = 56
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