If a person walks at 18 km/h instead of 12 km/h, he would have walked 24 km more. The actual distance travelled by him is-

Question: If a person walks at 18 km/h instead of 12 km/h, he would have walked 24 km more. The actual distance travelled by him is-

Solution:
Let
the actual distance travelled be x km.

Then,
x/12 = (x + 24)/18
⇒ 18x = 12x + 288
⇒ 6x = 288
∴ x = 48 km