Math, asked by khushi711, 1 year ago

the mean of p,q,r,s and t is 28. if mean of p,r,t is 24 . what is the value of q and s

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Answered by Mohit0007
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Answered by arnab2261
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According to the question,
(P + q + r + s + t) /5 = 28
Or, p + q + r + s + t = 28 * 5 = 140. .......(1)

Again, it is given that,
(P + r + t) /3 = 24.
Or, p + r + t = 3 * 24 = 72. ........ (2)

Now, subtracting (2) from (1)
We have, (p + q + r + s + t) - ( p + r + t) = 140 - 72
Or, q + s = 68.

Thus, sum of q and s is 68.

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