Question

After 10 years, a man will be three times as
old as his son, the difference of their present
ages is 30 years. Find the present age of man
1. 35 years
2. 30years
3. 40years
4. 38 years​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

35 years.

Step-by-step explanation:

Let the present age of his son be x.

Difference in their ages=30 years.

Age of his father=(30+x) years.

After 10 years,

Age of his son=x+10

Age of his father=(30+x+10). Or. 3(x+10)

Therefore,

30+x+10=3(x+10)

40+x=3x+30

x-3x=30-40

-2x=-10

x=10/2

x=5.

Age of son=5 years.

Age of his father =(30+5)=35 years.

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