Question

The mean of 5 observations is
21 if 14, 23, 25 and 17 are four
observations find the fifth
observation.
Your answer​

Answer 1

Answer:

fifth observation =26

Explanation:

let the fifth observation be x

now, mean=sum of observations

no. of observations

21 = 14+23+25+17+x

5

21= 79 +x

5

105= 79+x

=) x = 105 - 79

= 26

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Answer 2

Answer:

Upar wala sahi h answer

Explanation:

A man buys eggs at 4,500 per crate of 30 eggs . he finds out that 20% of the eggs are broken but sells the rest at 3,000 or dosen. find his percentage profit to the nearest whole numA cubical of wood was cut into 8 equal cube of side 4 cm. What is the volume of the block of wood