Question

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please tell​

Answer 1

Answer:

F = father's age ; S = son's age

F=3×S ; equation-1

After 15 year

F+15 =2(S+15) ; equation-2

Sub F from equation 1 into equation 2

3S+15=2S+30

S=15 ;

Present age, that is after 15 yers

S=30 F =60

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Answer 2

Step-by-step explanation:

let their present age be x and y

so according to question

x= 3y

and x+15= 2(y+15)

= 3y +15= 2y +30

= 3y-2y= 30-15

=y= 15

x = 3y = 3× 15= 45 ....x= 45 and y = 15 (ans)

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