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Question

Different types of toys are listed with their prices.The mean of the given data is 18. Find the value of x.


A
20
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B
18
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C
12
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D
22
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Solution

The correct option is A 20
The given data set is

14, 18, 16, 22, x

It is given that the mean of the data is 18

Mean = sum of all datanumber of data

Mean= 14+18+16+22+x5

= 70+x5

Mean = 18

18 = 70+x5

70+x = 5 ×18

x = 90 - 70

x = 20.

Hence, the value of x is 20


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