Most Probable Time, Speed, and Distance Questions for RRB Clerk 2025 Exam

The RRB Clerk 2025 Prelims Exam, which will be conducted on 6th, 7th, 13th, and 14th December, is just around the corner. In the Phase 1 – Paper 1 (Quantitative Aptitude) section, one of the most important and scoring topics is Time, Speed, and Distance (TSD). This chapter is asked every year, and the questions are simple, direct, and formula-based. TSD questions help you increase your attempts quickly because they do not require long calculations. If you understand the formulas and learn the shortcuts, you can solve each question in 10–15 seconds. To support your preparation, we are providing the Most Probable TSD Questions, the expected exam pattern, and the easiest strategy to solve them in the RRB Clerk Prelims exam.

Most Probable Time, Speed, and Distance Questions PDF Link

To help you score full marks in the Quant section of the RRB Clerk 2025 Prelims, we have created a Most Probable Time, Speed & Distance Questions PDF. This PDF includes the latest pattern-based questions, quick formulas, and detailed solutions. Click the link below to download and start practising now.

Question 1: Rajdhani express leaves Mumbai central at a certain time. After 4 hours, Durranto leaves the same station and travels in the same direction at a speed of 120 km/hr. If Durranto catches up the Rajdhani in 12 hours, then what is the speed of Rajdhani express?

A) 84 km/h

B) 90 km/h

C) 95 km/h

D) 80 km/h

E) None of these

Question 2: A man covers a certain distance with a certain speed in a certain time, but had he decreased his speed by 10 km/h then he would have taken 2 hours more. And, had he decreased his speed by 10 km/h more, then he would have been late by 3 hours more. Find total distance travelled by him.

A) 400 km

B) 600 km

C) 750 km

D) 800 km

E) None of these

Question 3: A train starts running late by 30 minutes so the driver increases his speed by 16 km/h so as to reach the destination on scheduled time. If the distance between source and destination of the train is 160 km, then find the original speed of the train.

A) 72 km/h

B) 58 km/h

C) 48 km/h

D) 56 km/h

E) None of these

Question 4: Amit and Prabha started travelling towards each other with speed of 45 km/h and ‘x’ km/h, respectively. When they meet, Amit realized that he has covered 30 km more than Prabha. Find the value of ‘x’ if the distance between Amit and Prabha initially was 510 km.

A) 30

B) 35

C) 36

D) 40

E) 42

Question 5: The downstream speed of the boatman is 30 km/hr. The speed of boat in still water is 300% more than the speed of the stream. Find the total distance travelled by the boatman in total of 8 hours, if he covers equal distance downstream and upstream.

A) 90 km

B) 120 km

C) 150 km

D) 180 km

E) 240 km

Time, Distance & Speed Questions PDF

Time, Distance & Speed Question for RRB PO Exam, Get PDF by Clicking on the Link Below:

What is Time, Speed & Distance?

It is a mathematical relationship between the speed at which something travels, the distance it travels, and the time it takes to travel that distance. The basic formula is:

Formula

• Speed = Distance / Time
• Time = Distance / Speed
• Distance = Speed × Time

Units must be the same. Always convert km/hr to m/s using:
1 km/hr = (5/18) m/s
And vice versa: 1 m/s = (18/5) km/hr

Strategy to Solve Time, Speed, and Distance Questions

Solving Time, Speed, and Distance (TSD) questions becomes very easy if you follow the right approach. Below are the simplest and most effective strategies to score full marks in this topic in the RRB Clerk 2025 Prelims exam.

1. Learn and Apply Basic Formulas Perfectly

Most TSD questions are formula-based, so make sure you remember the three core formulas:

• Speed = Distance ÷ Time
• Distance = Speed × Time
• Time = Distance ÷ Speed
  Once you know these well, 50% of the questions become very easy.

2. Convert Units Quickly (km/hr ↔ m/s)

Train and running questions always require unit conversion.
Remember:

• km/hr → m/s = × 5/18
• m/s → km/hr = × 18/5
  Practice these so you don’t waste time during the exam.

3. Use Relative Speed Smartly

Many questions involve two moving objects.

• Opposite direction → Add speeds
• Same direction → Subtract speeds
  This helps in solving trains, circular track, and chasing questions in seconds.

4. For Train Questions, Focus on Distance Covered

Remember:

• While crossing a pole, distance = train length
• While crossing a platform, distance = train length + platform length
• While crossing another train, the distance = the sum of both lengths
  Once distance is known, apply Time = Distance ÷ Speed.
  

5. Apply Shortcuts for Average Speed

If the distance is the same:

Average Speed=2aba+b\text{Average Speed} = \frac{2ab}{a + b}Average Speed=a+b2ab​

If distance is different, use:

Average Speed=Total DistanceTotal Time\text{Average Speed} = \frac{\text{Total Distance}}{\text{Total Time}}Average Speed=Total TimeTotal Distance​

6. Draw Small Diagrams for Boat & Stream

A simple diagram showing upstream and downstream helps avoid confusion.

• Downstream = Boat + Stream
  
• Upstream = Boat – Stream
  From this, you can easily find boat speed and stream speed.
  

7. Focus on Speed Tricks Instead of Calculations

Learn common speed values:

• 36 km/hr = 10 m/s
• 54 km/hr = 15 m/s
• 72 km/hr = 20 m/s
  These appear frequently in exam questions and save time.
  

8. Practice Previous Year Questions for Exam Patterns

RRB exams repeat question styles often.
Solving last 3–4 years of TSD questions will give you the exact idea of framing, speed tricks, and typical calculation patterns.

9. Maintain Accuracy Over Speed

TSD questions are easy but mistakes happen when you rush.
Use:

• Clear writing
• Unit check

Proper formula application
This ensures full marks.

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