the sum of ages of two brothers, having a difference of 8 years between them, will double after 10 years. What is the ratio of the younger brother to that of the elder brother?
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let the age be x and y
then
x-y =8
(x+10)+(y+10)=2x+2y
so we get
18+y +y+10=16+4y
2y= 12
y= 6
x=14
so the age are 6,14
then
x-y =8
(x+10)+(y+10)=2x+2y
so we get
18+y +y+10=16+4y
2y= 12
y= 6
x=14
so the age are 6,14
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