If two is subtracted from the denominator of a fraction. The fraction becomes 1/3 instead. If two is added to the numerator and one is subtracted from the denominator, the fraction becomes 1/2 . Find the fraction select one:
a. 4/15
b. 3/11
c. 6/17
d. 7/18
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option (b) is the correct answer
atq,
n/d-2=1/3
on cross multiply we get
3n=d-2
3n-d+2=0. ......(1)
again atq,
n+2/d-1=1/2
in cross multiply we get
2n+4=d-1
2n-d+5=0. ......(2)
sub eq 1 and 2
we get n-3=0
therefore n=3
put n in eq 1 we get
3(3)-d+2=0
d=11
atq,
n/d-2=1/3
on cross multiply we get
3n=d-2
3n-d+2=0. ......(1)
again atq,
n+2/d-1=1/2
in cross multiply we get
2n+4=d-1
2n-d+5=0. ......(2)
sub eq 1 and 2
we get n-3=0
therefore n=3
put n in eq 1 we get
3(3)-d+2=0
d=11
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