Present ages of Sonu and Monu are in the ratio 4:5. Eight years from how the ratio of their ages will be 5:6. Find their present ages.
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Step-by-step explanation:
Let the Common Multiple Be X
So,
Sonu : Monu = 4X : 5X
After 8 year =
4X +8 / 5X +8 = 5/6
( Cross Multiplication )
6(4X + 8 ) = 5( 5X + 8 )
24X + 48 = 25X + 40
48 - 40 = 25X - 24X
X = 8......
Present age =
Sonu = 4X = 8 × 4 = 32
Monu = 5X = 8× 5 = 40...
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