Answer:
Transmission is in 3rd gear.
Step-by-step explanation:
It's given in the question that in first gear, or low gear, an automobile's engine runs about 3 times as fast as the drive shaft.
In 2nd gear the engine runs about 1.6 times faster than the shaft drive.
But in third or higher gear the engine runs at the same speed as the drive shaft.
Engine speed = Drive shaft speed = 2400 r.p.m.
Therefore, transmission is in 3rd gear.
