Question

The ratio of Mr.X's score to Mr.Y's score was 8:9. If Mr.Y had scored 30 marks lower, the ratio would have had been 4:3. How many marks did Mr.Y score?

Answer 1

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

Correct me if im wrong:)

#Carryonlearning

Answer 2

Step-by-step explanation:30 x 2 = 60 because 8:9 get simplify by 2 and you just times the 30 with 2