altitudes MP and NR of the triangle are equal.
The following table presents the number of literate females in a town
Age group
10-15
15-20 20-25 25-30
No. of females 300
30-35
980
35-40
(i) What is class size and class mark of class 35-40?
800
580
290
50
(ii) Draw a histogram to represent the above data
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Answer:
the answer of first question is 5
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