The average of 50 number is 38. If the two numbers 45 and 55 are not considered, What will be the average of remaining numbers?

According to the basic formula of average,
Average(A)= Sum (S) / Number(N)
∴ 38 = S/50
∵ S = 38 x 50 = 1900
Sum of remaining number after eliminating 45 and 55
= 1900 - (45 + 55) = 1800
Average of remaining numbers = (Sum of remaining number) / (Remaining number)
= 1800 / ( 50 - 2)
= 1800/48
= 37.5