Question

1/3 of Poojitha's age three years ago plus 1/2 of her age two years from now is twenty years . How old is she now ?.. explain answer....my lovely frndz

Answer 1

Answer:

24 years

Step-by-step explanation:

Let her present age is 'x' years.

According to the given condition, we get

=> (1/3)[x - 3] + (1/2)[x + 2] = 20

=> (x-3)/3 + (x + 2)/2 = 20

=> 2(x-3) + 3(x+2) = 20 * 6

=> 2x - 6 + 3x + 6 = 120

=> 5x = 120

=> 5x = 120

=> x = 24.

Therefore, She is 24 years old.

Hope it helps!

Answer 2

let poojitha's present age = x

poojitha's age before 3 years = x - 3

poojitha's age after 2 years = x + 2

20 years =( 1/3 *{ x - 3}) + ( 1/2 * {x + 2})

               = ({ x - 3 }/ 3) + ({x + 2}/2)

               = [2x - 6 + 3x + 6] / 6  

20            = 5x/6

5x             = 120

x                =  120/5 = 24