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

Answer:

Step-by-step explanation:

x/y=8/9. So 9x=8y-i)

x/y-30=4/3

3x=4y-120

9x=12y-360(multiplying by 3)

from i)

8y=12y-360

therefore, y=90

Answer 2

Answer:

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Step-by-step explanation: