Question

The sum of the ages of Farhan and his cousin is 38. Seven years ago, Farhan was thrice as old as his cousin. find Farhans percent age​

Answer 1

Answer:

25 and 13

Step-by-step explanation:

Sum of ages of Farhan and his cousin = 38

7 years ago farhan thrice of his cousin = 3:1

7 year ago the sum of their ages 38-14 = 24(7 years for each)

3:1 = 4 units = 24

1 unit =6

Ages of Farhan and his cousin 7 years ago = 6*3= 18 and 6*1 = 6

So the present age of Farhan 18+7=25 and his cousin 6+7 = 13

Answer 2

Answer:

Farhan's age= 25 years

His cousin's age= 13 years

Step-by-step explanation:

Let present age of Farhan= x years

Let present age of his cousin= y years

7 years ago,

Farhan's age= (x-7) years

His cousin's age= (y-7)

ATQ,

x+y= 38 -------(i)

and

x-7= 3(y-7)

x-7= 3y-21

x-3y= -14 -------(ii)

Subtract eq. (ii) from (i)

x+y-(x-3y)= 38-(-14)

x+y-x+3y=38+14

4y=52

y=13

Putting y=13 in eq. (i)

x+13=38

x=25

So,

Present age of Farhan= 25 years

Present age of his cousin= 13 years

Hope It Helps :)