E E
20. The heights of plants planted by the students of class- IX in an
afforestation program are given below. The average height of
plants is 36 cm.
5
15
25
35
45
55
8
5
12
р
24
16
Height (in cm)
Number of plants
(i) Find the value of p.
(ii) Find the total number of plants.
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Answer:
Value of p= 23cm
total no. of plants = 100
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