the difference between the ages of two cousins is 10 years.15 years ago,if the elder one was twice as old as the younger one, find their present ages
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Let the elder cousins age be x and the age of smaller cousin be y
According to 1st condition
X-y=10----1
According to 2nd condition
(x-15)=2(y-15)
X-15=2y-30
X-2y=-15------2
Subtract equation 2 from equation 1
We get.
Y=25
Put y=25 in equation 1 we get
X=35
Hence the age of two cousins is 35 yrs and 25 yrs respectively
According to 1st condition
X-y=10----1
According to 2nd condition
(x-15)=2(y-15)
X-15=2y-30
X-2y=-15------2
Subtract equation 2 from equation 1
We get.
Y=25
Put y=25 in equation 1 we get
X=35
Hence the age of two cousins is 35 yrs and 25 yrs respectively
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