The ratio of marks obtained by Rajesh, Rakesh and Ramesh in an exam is 2 : 4 : 9. What are the marks obtained by Rakesh and Ramesh, if Rajesh scored 30 marks in the exam?
1.Rakesh = 40, Ramesh = 90
2.Rakesh = 60, Ramesh = 135
3.Rakesh = 120, Ramesh = 180
4.Rakesh = 90, Ramesh = 40
Correct Answer : 2
Solution :
Let marks obtained by Rajesh, Rakesh and Ramesh are 2m, 4m and 9m respectively.
Marks obtained by Rajesh = 30
2m = 30
m = 15
Marks obtained by Rakesh= 4 * 15 = 60
Marks obtained by Ramesh= 9 * 15 = 135
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