the mean of 10 no is 12.5. the mean of first six no is 15 and mean of last five mo is 10. find the sixth no
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may be 85...........
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10×12.5=125 no of 10.....
15×6=90 no.of 6.......
10×5=50 no.of 5......
total 11=90+50=140
and give 10....=125
extra no=140-125=15 answer
15×6=90 no.of 6.......
10×5=50 no.of 5......
total 11=90+50=140
and give 10....=125
extra no=140-125=15 answer
Dhanyababu:
So the sixth term is 15 ryt?
yes
@dritu is it clear
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