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A set of data contains a total of 130 items which are divided into six...

Mathematics
JAMB 1980
A set of data contains a total of 130 items which are divided into six groups for display on a pie chart. If one group contains 26 items, then the sector representing this group on the pie chart contains an angle xo at the centre of the circle where x is
  • A. 36o
  • B. 60o
  • C. 70o
  • D. 72o
  • E. 75o
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Correct Answer: Option D
Explanation
\(\frac{26}{130}\) = \(\frac{x}{360}\)

130x = 26 x 360

= 9360

x = \(\frac{9360}{130}\)

= 72o
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