The ratio of madhuri and meena age is6:7 after 12 years the ratio of their ages will be 12:13. find the percentage
Answers
Answered by
0
present ages of Madhuri and Meena is in ratio of 6:7
Madhuri/Meena = 6/7................(1)
after 12 years their age will be 12:13
subtract 12 from above ratio to change to present age,
then Madhuri/Meena = (12x - 12)/(13x - 12).......(2)
equate (1) and (2)
6/7 = (12x - 12)/(13x - 12)
6(13x - 12) = 7(12x - 12)
78x - 72 = 84x - 84
84 - 72 = 84x -78x
12 = 6x
x = 2
present age of Madhuri is 12x - 12 = 12*2 - 12 = 24 - 12 = 12
present age of Meena is 13x - 12 = 13*2 - 12 = 26 - 12 = 14
Madhuri/Meena = 6/7................(1)
after 12 years their age will be 12:13
subtract 12 from above ratio to change to present age,
then Madhuri/Meena = (12x - 12)/(13x - 12).......(2)
equate (1) and (2)
6/7 = (12x - 12)/(13x - 12)
6(13x - 12) = 7(12x - 12)
78x - 72 = 84x - 84
84 - 72 = 84x -78x
12 = 6x
x = 2
present age of Madhuri is 12x - 12 = 12*2 - 12 = 24 - 12 = 12
present age of Meena is 13x - 12 = 13*2 - 12 = 26 - 12 = 14
Similar questions