Question

Henry has a 88 average after 7 assignments in his class. He would like

to get an A in the class, which requires an 89.5% What grade is required
on the next assignment so he can get an A

Answer 1

Answer: He need to score 100 in next assignment to can get an A.

Explanation:

Given: Average marks till now = 88%

Average = (sum) divided by (Number of observations)

Here, number of assignments =7

So,
`88=((sum))/(7)\Rightarrow\ sum =88*7= 616` (i)

After next assignment, number of assignments = 8

Required Average = 89.5

`89.5=(sum)/(8)\Rightarrow\ sum = 89.5*8= 716` (ii)

(ii)-(i) gives 100

So, he need to score 100 in next assignment to can get an A.