please give me the answers of following question immediately
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Given, Total boys = 20
Total girls = 30
Average age of boys = 11 years
Average age of girls = 12 years
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Total age of boys = 20 * 11 = 220
Total age of girls = 30 * 12 = 360
Total age of whole class = 220+360= 580
Total students = 20+30 = 50
Average of whole class = 580/50 = 11.6
So we get average of whole class = 11.6
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Total boys = 20
Total girls = 30
Sum of age of all boys = B = 20 * Avg of all boys = 20 * 11 = 220
sum of age of all girls = G = 30 * Avg of all girls = 30 * 12 = 360
So average of whole class = 220+360/50 = 580/50 = 11.6 yrs =
Total girls = 30
Sum of age of all boys = B = 20 * Avg of all boys = 20 * 11 = 220
sum of age of all girls = G = 30 * Avg of all girls = 30 * 12 = 360
So average of whole class = 220+360/50 = 580/50 = 11.6 yrs =
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