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MATHEMATICS

JAMB 2010 - Question 47

Mathematics 2010 JAMB Past Questions - Question 47: Find the mean mark .

Find the mean mark .

A: 3.2

B: 3.0

C: 3.1

D: 3.3

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Correct Answer

Explanation

check solution in the diagram abovemean mark x = Efx /Ef = 66/20therefore x = 3.3