The present ages of Ritu and Nitu are in the ratio15:8. After 10 years, their ages will be in the ratio 5:3 . Find their present
ages.
1 answer:
Answer:
60 : 32
Step-by-step explanation:
Let x = Their present ages
Ritu : Nitu = 15x : 8x
After 10 years, their ages will be in the ratio 5:3
In 10 years
15x + 10 : 8x + 10 = 5 : 3
15x + 10 / 8x + 10 = 5/3
Cross product
15x + 10 * 3 = 8x + 10 * 5
45x + 30 = 40x + 50
45x - 40x = 50 - 30
5x = 20
x = 20/5
x = 4
Ritu : Nitu = 15x : 8x
Ritu : Nitu = 15 * 4 : 8 * 4
= 60 : 32
Ritu : Nitu = 60 : 32
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