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Question 33

In calculating the mean of 8 numbers, a boy mistakenly used 17 instead of 25 as one of the numbers. If he obtained 20 as the mean, find the correct mean. 

  • A.24
  • B.23
  • C.21
  • D.19
Objective

Question details

Exam body
WAEC
Subject
Further Mathematics
Year
2015
Question no.
#33
Type
Objective
Previous · Q32Four fair coins are tossed once. Calculate the probability of having equal heads… Next · Q34 Simplify: \(^{n}C_{r} ÷ ^{n}C_{r-1}\)

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