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- A fraction becomes 4 when 1 is added to both the numerator and denominator and it becomes 7 when 1 is subtracted from both the numerator and denominator.
Question 1:
A fraction becomes 4 when 1 is added to both the numerator and denominator and it becomes 7 when 1 is subtracted from both the numerator and denominator.The numerator of the given fraction is:
A. 2
B. 3
C. 7
D. 15
Feedback required fraction be x/y
=> (x+1)/(y+1) = 4
=> x – 4y = 3 (x- 1)/(y- 1) = 7
=> x – 7 y = -6
X = 15, y = 3
=> (x+1)/(y+1) = 4
=> x – 4y = 3 (x- 1)/(y- 1) = 7
=> x – 7 y = -6
X = 15, y = 3
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