Question

The ratio of Mr Johns score to Mr. Peter's score
for a test is 8:9. if Mr. Peter had scored 30
marks lower, the ratio would have been 4:3,
Instead. How many marks did Mr John score?'
(A) 50
(B) 30
(C) 80
(D) 60
​

Answer 1

Answer:

jwjesksksosowoowowoowoe

Answer 2

Let the common multiple be x

John's score is 8x Peter's is 9x

8x/9x-30=4/3

24x=36x-120

12x=120

x=10

John's score is 8 x 10=80