The ratio between the present ages of Raj & Ravi s 3:7, respectively. After 4 years, Ravi's age will be
39 years. What was Raj's age 4 years ago?
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Present age ratio=3:7
Let the common ration be x
So,
Raj’s age=3x, Ravi’s age=7x
After four years,
Raj’s age=3x+4
Ravi’s age=7x+4
7x+4=39
7x=35
x=5
Hence, Raj’s age four years ago=
3x
3(5)
15 years
Let the common ration be x
So,
Raj’s age=3x, Ravi’s age=7x
After four years,
Raj’s age=3x+4
Ravi’s age=7x+4
7x+4=39
7x=35
x=5
Hence, Raj’s age four years ago=
3x
3(5)
15 years
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