the mean of 3 numbers A B and C is 8 and the mean of 5 numbers a b c d and e is 15 find the mean of d and e
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sum of a b c = 8X3 = 24
sum of a b c d e = 15 X 5 = 75
sum of d and e = 75-24 = 51
mean = 51/2 = 25.5
sum of a b c d e = 15 X 5 = 75
sum of d and e = 75-24 = 51
mean = 51/2 = 25.5
12383:
u r right
Answered by
6
Answer:
sum of a b c = 8X3 = 24
sum of a b c d e = 15 X 5 = 75
sum of d and e = 75-24 = 51
mean = 51/2 = 25.5
Step-by-step explanation:
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