Question
In a classroom there are 16 boys and 13 girls. Average
age of each boy and each girl is 20 years and 15 years respectively. The sum of ages of all the boys, girls and a teacher whose age is ‘x’ years is 550 years. Find the value of ‘x’. TYPE 36Solution
Sum of ages of all boys = 16 x 20 = 320 Sum of ages of all girls = 13 x 15 = 195 So, 320 + 195 + x = 550 => x = 35
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