The sum of father,s age and twice the age of his son is70.If we double the age of the father,s and add it to the age of his son the sum is 95.find their present age
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Let the age of sons be x&that of fathers be y.
2x+y=70.................(1)
x+2y=95......................(2)
by adding equation no. (1)&(2)
3x+3y=165
x+y=55...................(3)
subtracting eq no.(2) from (1)
x-y=-25.................(4)
adding eqno. (3)&(4)
2x=30
x=15
substituting x=15 in eqno.(3)
y=40
son's age is 15&father's age is 40
Let the age of sons be x&that of fathers be y.
2x+y=70.................(1)
x+2y=95......................(2)
by adding equation no. (1)&(2)
3x+3y=165
x+y=55...................(3)
subtracting eq no.(2) from (1)
x-y=-25.................(4)
adding eqno. (3)&(4)
2x=30
x=15
substituting x=15 in eqno.(3)
y=40
son's age is 15&father's age is 40
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Answer:
sons age is 15
fathers age is 40
Step-by-step explanation:
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