Question

sum of present age of x y and z = 60 years and the ratio of their age is 5:4:3 what will be the age of z after 3 years​

Answer 1

Let the present age of x be 5a years.

Let the present age of y be 4a years.

Let the present age of z be 3a years.

To find:

Age of z after three years.

Equation:

5a+4a+3a = 60

12a = 60

a = $\frac{60}{12}$

a = 5

Present age of z = 3a

                            = 3×5

                            = 15 years

Age of z after three years = 15+3

                                           = 18 years

⇒ Age of z after three years will be 18 years.

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Present age of x = 5a

                            = 5×5

                            = 25 years

Present age of y = 4a

                            = 4×5

                            = 20 years