Question

20 years from now Shrisha age will be three times her present age what is shirsha present age​

Answer 1

20×3=60

the present age of shirsha

Answer 2

Let Shrisha's present age be x

According to question ,

After 20 years ,

Shrisha's age will be 3 times her present age.

`\therefore \: 20 + x = 3x \\ \longrightarrow \: 3x - x = 20 \\ \longrightarrow \: 2x = 20 \\ dividing \: both \: sides \: by \: 2 \\ \\ \longrightarrow \: \cancel (2x)/(2) = \cancel (20)/(2) \\ \\ \longrightarrow \:\boxed{ x = 10}`

hence , Shrisha's present age is 10 years.

hope helpful! :)