Practicing Success
A train takes 1 hour 40 mins. to travel b/w P and Q. If it travels at \(\frac{2}{7}\) of its usual speed, how long will it take to travel b/w P and Q? |
4 hours 40 mins. 5 hours 50 mins. 6 hours 30 mins. 4 hours 30 mins. |
5 hours 50 mins. |
S ∝ \(\frac{1}{t}\) Speed → 7 : 2 Time → 2 : 7 ↓ ↓ ×50 ×50 ↓ ↓ 100 min 350 mins (given) ⇒ Train will take = \(\frac{350}{60}\) = 5 hours 50 mins. |