It took 24 seconds for a train to cross the 360 meter long railway bridge, and 16 seconds for a train to cross the 216 meter long railway bridge at the same speed______ Rice

It took 24 seconds for a train to cross the 360 meter long railway bridge, and 16 seconds for a train to cross the 216 meter long railway bridge at the same speed______ Rice


Speed: (360-216) / (24-16) = 144 / 8 = 18 (m), train length: 18 × 24-360 = 72 (m), or 18 × 16-216 = 72 (m). Answer: this train is 72 m long