the mean of 15 no.s is 20 and the mean of first 8 no.s is 19 while that of last 8 is 23.calculate the 8th term.
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if the mean of 15 no's =20
their sum = 15*20=300
if the mean of 8 no's=19
their sum 8*19=184
therefore,
8th term = 152+184-300
=336-300
=36
mark it as brainlist if it helped.....
their sum = 15*20=300
if the mean of 8 no's=19
their sum 8*19=184
therefore,
8th term = 152+184-300
=336-300
=36
mark it as brainlist if it helped.....
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