Question

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

Answer 1

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

Step-by-step explanation:

Given: Average marks till now = 88%

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

Here, number of assignments =7

So, $88=\dfrac{(sum)}{7}\Rightarrow\ sum =88\times7= 616$  (i)

After next assignment, number of assignments = 8

Required Average = 89.5

$89.5=\dfrac{sum}{8}\Rightarrow\ sum = 89.5\times8= 716$   (ii)

(ii)-(i) gives 100

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