Question

The average of a set of whole numbers is 27.2. when the 20% of the elements are eliminated from the set of numbers then the average become 34. The number of elements in the new set of numbers can be :
A) 27
B) 35
C) 52
D) 63

Answer 1

Hey mate m.....

The average of a set of whole numbers is 27.2. when the 20% of the elements are eliminated from the set of numbers then the average become 34. The number of elements in the new set of numbers can be :
A) 27
B) 35
C) 52
D) 63

Option C.

Hope it helps you