Question

15 years from now David's is will be 4 times his present age.
what is David's present age​

Answer 1

Answer:

PRESENT AGE = 5 YRS

Step-by-step explanation:

let's take age of david as 'x'

15 years from now is (x+15)

ATQ,

4x = x + 15

4x - x = 15

3x = 15

x = 15/3

therefore x = 5

hence,

David's present age : 5 yrs

David's age after 15 years : 15 + 5 = 20

which is exactly equal to 4 times his present age.

HOPE IT HELPS

Answer 2

Answer:

a+15=4a

4a-a=15

3a=15

a=15/3

a=5

David present age is 5