B) 6
C) 8
D) 10
Arithematic Mean = (a+b)/2
= (4+6)/2
= 10/2 = 5
Related MCQs:
- If the average arithmetic mean of 8, 12, 15, 21, x and 11 is 17 then what is x?
- If x + Y = 6, y + z = 7, and z + x = 9, the average (arithmetic mean) of x, y and z is?
- The first machine to perform a long series of arithmetic and logical operations was ..?
- Arithmetic Logic Unit consists of …….. units called?