the denominator of a rational number is greater than its numerator by 4. If the numerator is increased by 11 and the denominator is decreased by 1, the number obtend is 7/3 .find the rational number
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Geetanjal:
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Heya !!!
Let the Numerator of fraction be X.
Denominator of fraction = ( X +4)
Fraction = Numerator/Denominator = X/X+4
Numerator is increased by 11 new numerator = ( X+11) and Denominator is decreased by 1 new denominator = ( X+4 -1) = ( X+3)
New fraction = Numerator/Denominator = ( X+11)/ ( X+3)
According to question,
( X+11 ) / ( X+3) = 7/3
By cross multiplication, we have
3 ( X+11) = 7 ( X+3)
3X + 33 = 7X + 21
7X - 3X = 33 - 21
4X = 12
X = 12/4 = 3
Numerator = X = 3
And,
Denominator = ( X +4) = ( 3+4) = 7
Fraction = Numerator/Denominator = 3/7.
HOPE IT WILL HELP YOU.... :-)
Let the Numerator of fraction be X.
Denominator of fraction = ( X +4)
Fraction = Numerator/Denominator = X/X+4
Numerator is increased by 11 new numerator = ( X+11) and Denominator is decreased by 1 new denominator = ( X+4 -1) = ( X+3)
New fraction = Numerator/Denominator = ( X+11)/ ( X+3)
According to question,
( X+11 ) / ( X+3) = 7/3
By cross multiplication, we have
3 ( X+11) = 7 ( X+3)
3X + 33 = 7X + 21
7X - 3X = 33 - 21
4X = 12
X = 12/4 = 3
Numerator = X = 3
And,
Denominator = ( X +4) = ( 3+4) = 7
Fraction = Numerator/Denominator = 3/7.
HOPE IT WILL HELP YOU.... :-)
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