1.

Find the mean of first five multiples of 3.

Answer»

First five multiples of 3 are 3 , 6 , 9 , 12 , 15. 

Sum of numbers = 3+6+9+12+15

= 45

Total Numbers = 5 

Now, Mean = (Sum of numbers) / (Total Numbers) 

\(\frac{45}{5}\)

= 9 

Mean = 9



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