Page 5 - Digi Notes -Maths - 08 April

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Need not to calculate the percentage value in each case; as in each case the comparison
is made with “the total number of the students in all the institutions”. Hence the
institution would be with the highest number of students; therefore institution WER.
7. If the given column graph is converted to the pie chart; then find the central angle
corresponding (approximately) to the number of the students in the HIT institution in
the years 2015.

× ≅
8. If the given column graph is converted to the pie chart; then find the difference of the
central angle corresponding (approximately) to the number of the students in the ZMR
and THE institution in the years 2015.

× (~) ≅
9. If 15000 students of the institution WER are transferred to ABC institution; find the
percentage decrease in the number of the students in WER institution in the years 2015.

× ≅ %
10. If 15000 students of the institution WER are transferred to ABC institution; find the
percentage increase in the number of the students in ABC institution in the year 2015.

× = . %

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