MCQ
There are 50 numbers. Each number is subtracted from 53 and the difference between the mean of the numbers so obtained is found to be 3.5. The mean of the given number is:
- A56.5
- B52.5
- C49.5
- D47.5
✓
Answer
- 56.5
Solution:
Let the mean of the initial sequence is x.
Given that, after subtracting 53 from each number, the difference between the means is 3.5.
So, x - 53 = 3.5
Mean of the number is x = 53 + 3.5 = 56.5
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