Ages of joy and Rohit are in the ratio 5:7 . After 10 years, age of Rohit and joy will be 7:9.Find the present ages.
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Ages of joy and Rohit are in the ratio 5:7 . After 10 years, age of Rohit and joy will be 7:9.Find the present ages.
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Answer:
Let the age be x
So, present age of joy is 5x
and present age of Rohit is 7x
After 10 years,
Age of joy = 5x+10
Age of Rohit = 7x+10
According to the question,
5x+10/7x+10 = 7/9
9(5x+10) = 7(7x+10)
45x+90 = 49x+70
90-70 = 49x-45x
20 = 4x
x = 5
Present age of joy = 5×5 = 25years
Present age of Rohit = 7×5 = 35years