Sum of weights of 12 boys and 8 girls is 1080kg. If the average of boys weight is 50kg then what is the average of girls weight
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EXPLANATION:-
12×50=600 (no.of boys×average weight)
8×x=1080-600
=480
x=480/8
x=60
thus,
(12×50)+(8×60)/20(total no.of girls and boys)
600+480/20
1080/20
54kg(ans)
12×50=600 (no.of boys×average weight)
8×x=1080-600
=480
x=480/8
x=60
thus,
(12×50)+(8×60)/20(total no.of girls and boys)
600+480/20
1080/20
54kg(ans)
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