Ravis score in maths is 35 marks more than English and ratio of ravis marks in maths to english is 12 :7 . If the score in maths reduced by 4 marks and in english reduced by 9 marks. Find the new ratio of maths and english?
Answers
Answered by
2
Answer:
2:1
Step-by-step explanation:
Maths- x
English- y
x-y=35 => x=y+35
x/y=12/7=> x=12y/7
y+35=12y/7=> 5y/7=35 => y=49 then x=84
Now, when marks have changed:
x1=x-4=84-4=80
y1=y-9=49-9=40
New ratio = 80:40=2:1
Similar questions