Question
Two trains, one 100 m and the other 80 m in length, are
running in opposite directions at speeds of 8 m/sec and 7 m/sec. How long will they take to pass one another?Solution
ATQ,
Two trains move in opposite directions, so their speeds add up: 8 + 7 = 15 m/s Combined length to pass each other: 100 + 80 = 180 meters Time = Distance ÷ Speed 180 ÷ 15 = 12 seconds
More Trains Questions
(√780 + 111.98) ÷ 6.95 + 39.95% of 179.98 = ?
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
1120.04 – 450.18 + 319.98 ÷ 8.06 = ?
660 × ? + 495.85 - 60% of 9650 = 37.5% of 7200
(462.23 × 127.84 ÷ 153.88) ÷ √(31.98 × 7.92) = ? ÷ 15.15
(9.013 – 15.04) = ? + 9.98% of 5399.98
17.06 2 + √36.08 – (4.04/2.99) × 3.02 × 4.92 = ? × 4.99
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exactvalue.)
?% of 1200.22 + 319.82 = 3.99 × 295.64
( 1728)1/3  × 10.11 × 3.97 ÷ 8.32 = ? + 15.022
