) 15
15 years ago, the age of the father was six times
his son's age at that time. After 5 years the age
of the father will be twice that of his son. Find
their present ages.
..3
Answers
Answered by
3
send the question properly...
mohitaggarwal257048:
i can solve but i don't get the option of answer
Answered by
1
Step-by-step explanation:
15 years ago
let the age of father be X-15
Age of his's son=y-15
According to question
X-15=6(y-15)
X-15=6Y-90
X-6Y=-75_______Eq1
After 5 years,
Age of father=X+5
Age of his's son=y+5
according to question
x+5=2(y+5)
X+5=2Y+10
X-2Y=5________Eq2
solving eq 1 and 2,we get
X-6Y=-75
X-2Y=5(SIGN changes)
- + =-
_______
-4Y=-80
Y=-80/-4
Y=20
Putting the value of Y(20)in Eq2.
X-2(20)=5
X-40=5
X=45
Age of father=45
Age of his's son=20
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