The mean of four numbers a,b,c,d is 100. IF c = 70, then the mean of the remaining numbers is
A. 30
B. 85/2
C. 170/3
D. 110
Answer:D
The mean of four numbers a,b,c,d is 100. IF c = 70, then the mean of the remaining numbers is
A. 30 B. 85/2 C. 170/3 D. 110