Question

Sum of ages of a and b is 23 years a is 3 yesr elder than b

Answer 1

Answer:

13 AND 10

Step-by-step explanation:

Let  x and y be the ages of  A and B

Sum of ages of A and B  is 23

so     x + y = 23

A  is 3 years elder than B

SO    x = y +3

    so   y + 3 + y = 23

          2 y = 20

          y =10

 then x + 10 = 23

       x = 13        

Answer 2

Answer: 10,13

Step-by-step explanation:

Let the age of 'a' and 'b' be 'x' and 'y'

x+y = 23

'a' is 3 years elder than 'b' then

y = x + 3

y is substitute ina x + y = 23

x + x + 3 = 23

2x = 23 - 3

x = 10 then x = 10 is in y = x + 3

y = 10 + 3

y = 13

Therefore age of 'a' is 10 and 'b' is 13