sharad is 60 years old and santosh is 80 years old. how many years ago was the ratio of their ages 4 : 6?
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Answered by
3
Sharad = 60 years
Santosh = 80 years
Let the years that have passed be x, then x years ago their ages were :
Sharad = 60 - x
Santosh = 80 - x
The ratio of their ages at that time was :
4 : 6
(60 - x) : (80 - x) = 4 : 6
(60 - x) / (80 - x) = 4/6
6(60 - x) = 4(80 - x)
360 - 6x = 320 - 4x
360 - 320 = - 4x + 6x
40 = 2x
2x = 40
x = 40/2
x = 20
20 years ago the ratio of their ages was 4 : 6
Answered by
1
Answer:
Sharad = 60 years
Santosh = 80 years
Let the years that have passed be x, then x years ago their ages were :
Sharad = 60 - x
Santosh = 80 - x
The ratio of their ages at that time was :
4 : 6
(60 - x) : (80 - x) = 4 : 6
(60 - x) / (80 - x) = 4/6
6(60 - x) = 4(80 - x)
360 - 6x = 320 - 4x
360 - 320 = - 4x + 6x
40 = 2x
2x = 40
x = 40/2
x = 20
20 years ago the ratio of their ages was 4 : 6
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