Question

6.
6. Ten years ago Rakesh was thrice as old as Ram
was but 10 years hence, he will be only twice as
old as Ram. Find ratio of their present ages.​

Answer 1

Step-by-step explanation:

Hope you understood the answer

Answer 2

Answer:

7:3

Step-by-step explanation:

let Rakesh's present age be x and Ram's age be y

then, 10 years ago,

Rakesh's age = x-10 and Ram's age = y-10

it is given that 10 years ago Rakesh was thrice as old as Ram.

=> x -10 = 3(y-10)

=>x-10 = 3y -30

=>3y-x = 20 (1)

10 years hence.

Rakesh's age =x +10 and Ram's age = y + 10

it is given that 10 years hence, Rakesh's age is twice that of Ram's.

=>x +10 = 2(y +10)

=>x+10 = 2y + 20

=>x-2y = 10 (2)

adding equations (1) and (2), we get y = 30

substituting y = 30 in (1), we get x = 70

therefore, Rakesh's present age = 70 and Ram's present age = 30

=> ration of their present ages = 70:30 = 7:3