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if the value of the numerator is increased by 20% and that of the denominator is decreased by 25% the fraction becomes unity the numerator of original fraction is
Read Solution (Total 8)
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- Sorry its 15/24 => 5/8
Ans : 5 - 10 years agoHelpfull: Yes(35) No(0)
- Let the original fraction be x/y
Numerator increased by 20%
Then x*120/100 = 6x/5
Denominator decreased by 25%
Then y*75/100 = 3y/4
6x/5 / 3y/4 = 1
24x/15y = 1
24x = 15y
x/y = 15/24
Original numerator is x = 15
Ans : 15 - 10 years agoHelpfull: Yes(15) No(8)
- 120n/75d=1
n/d=75/120=5/8 - 10 years agoHelpfull: Yes(13) No(0)
- let the number be = 100x/100y
then the value after change will be 120x/75y
solve these we will get 5/8 so numerator will be 5
answer =5
method two you can also check the operation on 5/8 if u have options :) - 9 years agoHelpfull: Yes(1) No(0)
- 15 is the correct ans
- 9 years agoHelpfull: Yes(1) No(2)
- later on
8/5 - 10 years agoHelpfull: Yes(0) No(8)
- 8x/5y=1
x/y=5/8 - 9 years agoHelpfull: Yes(0) No(0)
- 20%=1/5
25%=1/4
x+1/5=x=1/4
=4/5 - 9 years agoHelpfull: Yes(0) No(4)
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