16. The ratio of ages of Urooj, Aroma and Sumaira is 4:5:7 and sum of their
ages is two less than a half century. Find Sumaira's present age?
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The ratio between the ages of two persons is 5: 7. 16 years ago the ratio between their ages was 3: 5. What are their present ages?
Let their present ages be in the ratio = 5x : 7x
16 - years ago their ages were (5x16) : (7x -16) = 3 : 5
So 5(5x-16) = 3(7x-16)
= 25 x -80 = 21x -48
= 4x= 32; So x= 8.
Therefore their present ages are
5x= 40 ======> &
7x = 56
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Answer:
4:5:7 and sum of age is two less than a half of century =50=4+5+7=16 =50..=3.125
now therefore 50/4=12.5years
50/5=10years
50/7=7 years...are the total age ..
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