in a class,there are 32 boys and 28 girls.the average age of the boys in the class is 14 years and the average age of the girls in the class is 13 years.what is the average age of the whole class?(rounded off to two digits after decimal)
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1
Answer:
Total age of boys =32x14=448
total age of girls =28x13=364
average age of whole class =32+28=60=448+364=812 ➗ 60=13.533333333
Answered by
2
Answer:
Total age of boys-14x32=448
Total .......... girls-l3x28=364
Total. 8 I2
Average=812 / 60=13.53yrs
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