21. Two numbers are such that the ratio between them is 3:5. It each is increased by 10, the ratio
between the new numbers so formed is 5:7. Find the number
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Step-by-step explanation:
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Answer:
15and 25
Step-by-step explanation:
let the numbers be 3x and 5x respectively.
ATQ
3x+10:5x+10=5:7
3x+10/5x+10=5/7
21x+70=25x+50
21×- 25x=-70 +50
-4x= -20
-to-cancelled
x=20/4
x=5
numbers=3×5=15ans.
=5×5=25ans.
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