The distance covered by a train in (x+1) hours is (x2-1) km. What is the speed of the train?
Answer & explanation
Correct answer: option 1
Distance = Speed × Time
(x2 - 1) = S × (x + 1)
⇒ S = \(\frac{(x - 1) (x + 1)}{(x + 1)}\)
⇒ S = (x - 1)
The distance covered by a train in (x+1) hours is (x2-1) km. What is the speed of the train?
Correct answer: option 1
Distance = Speed × Time
(x2 - 1) = S × (x + 1)
⇒ S = \(\frac{(x - 1) (x + 1)}{(x + 1)}\)
⇒ S = (x - 1)