The average or 8 readings is
24.3, out of which the average of 1st two is 18.5 and
that of next three is 21.2. If the sixth reading is 3 less than seventh and 8 less than
eighth, what is the sixth reading
?
(A)
24.8
(B)
26.5
(C)
27.6
(D)
29.4
P/A/TU2012-
A
P.T.O.
Answers
Answered by
3
SolutionLet 6th reading = x. Then, 7th = (x+3) & 8th = (x+8)
Therefore 2*18.5 + 3*21.2 + x + (x+3) + (x+8) = 8*24.3
or 37 + 63.6 + 3x + 11 = 194.4
or
x = 27.6
Option 3)
Answered by
2
Answer:
choose of the correct answer from the give alternatives
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