Sumo is now 9 years older than her brother in 10years sumo will be twice as old as her brother was 10 years ago.find their present ages.
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Let us assume, Sumo's present age is x years and her brother's age is y years.
Given:
x = y + 9
x - y = 9 ----------1
After 10 years,
x + 10 = 2 (y - 10)
x + 10 = 2y - 20
2y - x = 30 ----------2
Adding equation 1 and equation 2
y = 39 years
Therefore, x = .39 + 9 = 48 years
The present age of Sumo is 48 years and her brother's present age is 39 years.
Given:
x = y + 9
x - y = 9 ----------1
After 10 years,
x + 10 = 2 (y - 10)
x + 10 = 2y - 20
2y - x = 30 ----------2
Adding equation 1 and equation 2
y = 39 years
Therefore, x = .39 + 9 = 48 years
The present age of Sumo is 48 years and her brother's present age is 39 years.
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