Q. The average of 50 number is 38 .if two numbers 45 and 55 are discarded , the average of the remaining number is ?
✅ Correct Answer: (C)
37.5
Explanation: Sum of 50 member = (50 x 38 )
= 1900
Sum of 48 member = [1900- (45 + 55 ) ]
= 1800
∴ Required Average = 1800/48
= 225/6
= 37.5
Explanation by: Harikesh
Sum of 50 member = (50 x 38 )
= 1900
Sum of 48 member = [1900- (45 + 55 ) ]
= 1800
∴ Required Average = 1800/48
= 225/6
= 37.5
= 1900
Sum of 48 member = [1900- (45 + 55 ) ]
= 1800
∴ Required Average = 1800/48
= 225/6
= 37.5