The answer to the question
Answer:
John got 94 marks
Step-by-step explanation:
average = total numbers/ no. of students
77= x/16--------------1
78=x+y/17------------2
From 1 : x= 77*16= 1232--------------3
From 2: x+y= 78*17= 1326---------4
subtracting 3 from 4
y= 1326-1232= 94
Is 250 basically in 50 but the percentage of the 100 is 50% of the hundred right does that mean in this question it would have to be 250 is half of 300
You mean square root of 900?
I gotcha covered
30
