What is the average (arithmetic mean) of all multiples of 10 from 10 to 190 inclusive?   

A 90

B 95

C 100 

D 110 

E  210 

Solution

Correct Answer: Option C

গড় = (শেষ পদ + প্রথম পদ) / ২
     = ( ১৯০ + ১০ ) / ২
     = ১০০ 

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