If a number is subtracted from the numerator of the fraction 3/5 and thrice that number is added to the denominator, the fraction becomes 1/4. Find the number.
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Step-by-step explanation:let the number be x.
As given 3-x/5+3x=1/4
On cross multiplying
4(3-x)=5+3x
12-4x=5+3x
12-5=4x+3x
7=7x
7/7=x
1=x
Answer: the number is 1
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