Discuss Forum
1. If 6 and x have the same mean as 2, 4 and 24, what is the value of x?
- A. 5
- B. 5
- C. 5
- D. 5
Answer: Option C
Explanation:
Mean of 2, 4 and 24 = (2 + 4 + 24) / 3 = 10
Now, mean of 6 and x, (6 + x)/2 = 10
or, 6 + x = 10×2 = 20
So, x = 20 - 6 = 14
Post your comments here: