Time Speed Distance in NMAT 2023
Q1. A train crosses a man, who is running in the same direction of train at the speed of 2m/sec. in 10 seconds. The same train crosses a tunnel in 54 seconds. If speed of train is 72 km/h then what is the length of tunnel?
(a) 850 m
(b) 800 m
(c) 900 m
(d) 750 m
(e) 650 m
Q2. Raghav can beat Suresh by 100m in a race of 1 km and they run at speed of 10m/sec and 8 m/sec respectively. If Suresh increases his speed by 7m/sec then by how much time he will beat Raghav in the same race of 1km?
(a) 43 sec
(b) 36 sec
(c) 110/3 sec
(d) 100/3 sec
(e) 70/3 sec
Q3. A boat can cover upstream distance between two points in 6 hours and same distance downstream in 4 hours. If speed of boat in still water is 8 km/h, then find speed of stream.
(a) 2 km/h
(b) 1.6 km/h
(c) 3.2 km/h
(d) 4.8 km/h
(e) 3.8 km/h
Q4. Two trains X and Y cross each other in 48 sec, when both are running in same direction. If length of train X is 160 m and speed of train X and train Y are 54 km/h and 72 km/h respectively then find the length of train Y.
(a) 160 m
(b) 120 m
(c) 80 m
(d) 100 m
(e) 95 cm
Q5. A train P running with speed 54 kmph crosses a man in 30 sec. In how much time it can cross a 180 m long platform.
(a) 51 sec
(b) 45 sec
(c) 42 sec
(d) 39 sec
(e) 58 sec
Q6. A boat can travel with the speed of 17 kmph in upstream. If the speed of river is 3 kmph, then find the speed of boat in downstream in the same river.
(a) 23 kmph
(b) 20 kmph
(c) 25 kmph
(d) 19 kmph
(e) 21 kmph
Q7. A 570 m long train can cross a pole in 38 sec. In how much time it can cross a 660 m long platform.
(a) 82 sec
(b) 64 sec
(c) 90 sec
(d) 120 sec
(e) 72 sec
Frequently asked questions
What kind of Time-Speed-Distance questions appear in NMAT?
This set covers trains crossing a man or tunnel, boats in still water vs upstream/downstream, and two trains crossing each other — the classic NMAT TSD question types.
What's a common trick in train-crossing questions?
Convert everything to the same unit (usually m/sec) first — most questions here give speed in km/h but ask for time in seconds or length in metres, so the km/h-to-m/sec conversion (x5/18) is essential.
How are boat and stream questions handled here?
The set includes both finding stream speed from upstream/downstream times and finding downstream speed from a given upstream speed and stream speed, both solved using the standard boat-and-stream speed formulas.
How many TSD questions are in this practice set?
Seven questions are given, each with five answer options, covering trains, boats and relative speed scenarios typical of NMAT Quant.