the difference between the age of two cousins is 10 years 15 years age. if the elder one was twice as old as the younger one find their present ages.
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Answered by
293
Let the age of younger cousin be x years
and age of the older brother be y years ;
y-x = 10
y = 10+x -----(1)
15 years ago :
the age of the cousins will be (x-15) & (y-15)
(y-15) = 2(x-15)
y-15 = 2x-30
y = 2x-15 -----(2)
10+x = 2x-15
x = 25
y = x+10
y = 25+10
y = 35
___________________
Hence the respective ages of the two cousins are 25 & 35 years.
and age of the older brother be y years ;
y-x = 10
y = 10+x -----(1)
15 years ago :
the age of the cousins will be (x-15) & (y-15)
(y-15) = 2(x-15)
y-15 = 2x-30
y = 2x-15 -----(2)
10+x = 2x-15
x = 25
y = x+10
y = 25+10
y = 35
___________________
Hence the respective ages of the two cousins are 25 & 35 years.
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83
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