RRB Technician (Grade I Signal + Grade III) 2026 · Question 103 of 265

​A car travels 120 km at an unknown speed x km/h and then returns at (x + 20) km/h. The average speed for the whole journey is 60 km/h. Find the value of x. (Round to one decimal place.)

1. A54.5
2. B51.6Correct
3. C50.2
4. D52.4