Question

The mean of 6 numbers is 24. If one number is excluded, the mean of remaining numbers become 22. Find the excluded number.
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Answer 1

$\huge\bf\pink{ᴀɴsᴡᴇʀ࿐}$

ʀᴇǫᴜɪʀᴇᴅ ᴀɴsᴡᴇʀ-:

$\pink\looparrowright$Let excluded no. be x

$\pink\looparrowright$As mean =

$\pink\looparrowright$$\sf\frac{sum}{no.~of~terms}$$\rightarrow$sum =

$\pink\looparrowright$6 × 24 = 144

and

$\pink\looparrowright$144 - x = (22×5)$\rightarrow$ x = 144 - 10

$\pink\looparrowright$Remaning numbers $\rightarrow$ x = 24

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