Question

When Ajit travelled 15 km, he found that one-fourth of his journey was still left. What was the full length of the journey?

Answer 1

Let the total length of journey = x

Journey travelled = 15 km

Journey still left = `1/4` of x

Now, according to question,

`"x"-15=1/4` of x

x − 15 = `"x"/4`

`"x"-"x"/4` = 15

`(4"x"-"x")/4=15`

3x = 15 × 4

x = `(15xx4)/3`

= 20 km

∴ Total length of the journey = 20 km.