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:
- A49.5
- B53.5
- C56.5
- D46.5
✓
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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