The frequency of 3 numbers 4, 6 and 8 are (x+2), x and (x + 1) respectively. If their arithmeti
mean is 5.67 then the value of x will be
A. 7
B. 6
C. 8
D. 4
Answers
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Question ⤵️
The frequency of 3 numbers 4, 6 and 8 are (x+2), x and (x + 1) respectively. If their arithmeti
mean is 5.67 then the value of x will be
A. 7
B. 6
C. 8
D. 4
Answer ⤵️
ANSWER
8=
4+6+8
4×(x+2)+6x+8×(x−1)
=
18
4x+8+6x+8x−8
∴x=8
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