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The age-wise participation of students in the Annual Function of a school is shown in the following distribution.

Age (in years)
5-7
7-9
9-11
11-13
13-15
15-17
17-19
Frequency
x
15
18
30
50
48
x

The missing frequencies when the sum of frequencies is 181, is ____.

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Detailed Solution

The missing frequencies when the sum of frequencies is 181, is 10.
Given:

Age (in years)	5-7	7-9	9-11	11-13	13-15	15-17	17-19
Frequency	x	15	18	30	50	48	x

The Sum of frequencies is 181.
Therefore,

x + 15 + 18 + 30 + 50 + 48 + x = 181 2 x + 161 = 181 2 x = 20 x = 10

Hence, the value of x is 10.

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