Question

a average of hundred numbers is 45 but it was found that 2 numbers 15 and 43 mistakely calculated as 61 and 34 , find the correct average​

Answer 1

Answer:

44.63

Step-by-step explanation:

Average=Sum/no.of numbers

45=sum/100

4500=sum

now,since 61 and 34 were mistakenly calculated,

therefore we subtract the sum of these numbers and add the sum of the correct numbers, to get the correct sum of all the correct numbers.

so,4500-(61+34)

=4500-95

=4405

now,4405+(15+43)

=4405+58

=4463

therefore average=sum/no.of numbers

=4463/100

=44.63

please mark as brainliest

Answer 2

Total of 100 numbers = 45 * 100 = 4500
Add correct numbers = 15+43 = 58
Subtract wrongly taken = 61+34 = 95
———
New total 4463
Correct average = 4463/100 = 44.63