Question
A train 250 meters long crosses a platform in 20 seconds
at a speed of 72 km/hr. How much time will it take to cross another train 300 meters long, running at a speed of 54 km/hr in the opposite direction?Solution
Speed of the first train = 72 km/hr = (72 × 1000) ÷ 3600 = 20 m/s Speed of the second train = 54 km/hr = (54 × 1000) ÷ 3600 = 15 m/s Relative speed = 20 + 15 = 35 m/s Total length = 250 + 300 = 550 meters Time to cross = 550 ÷ 35 = 15.71 seconds ≈ 15.7 seconds Correct Option: a)
More Time and distance Questions
If 1.123 × 3.211 = 3.122 + ______________, then the number in blank space is
242 + 80% of 1620 = ? × 16 – 35% of 800
60% of 120 – ?% of 64 = 20% of 200
Solve: 666/6/3 = ?
(7/5) × (3/4) × (5/9) × (6/7) × 3112 = ?
- What will come in the place of question mark (?) in the given expression?
389 + 641 - ? = 180 X 2 420 ÷ 7 + 140 % of 20 + ? × 13 = 18 × 15
√676 + (0.75 × 80) + (72 ÷ 3) = ? - 82
20% of 150 + 30 X 4 = ? X 5
Relevant for Exams:
