Out of 24 girls, 6 are 1m 15cm in height, 8 are 1m 15cm and the rest 1m 11cm.what is the average height of girls?
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Average height of girls is = 113.3
Sol:-
6(100+15)+8(100+15)+10(100+11)
____________________________ =113.3cm
6+8+10
Sol:-
6(100+15)+8(100+15)+10(100+11)
____________________________ =113.3cm
6+8+10
Ram007:
a)1m 10cm b) 1m 15cm c)1m 20cm d) 1m 20cm....Ans option a)..How its derived from above mensioned problem ???
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