Question

Question 67
The mean of a set of eight numbers is 63. If one of the numbers is discarded, the mean of the remaining
numbers is 58. The value of discarded number is​

Answer 1

Answer:

98

Step-by-step explanation:

Let the sum of the initial numbers be x. Then,

x/8=63

=) x=63*8

=) x=504

Now, let the discarded number be n. Then,

504-n/7=58

=) 504-n=406

=) 504-406=n

=) 98=n

Therefore, the discarded number is 98.