Correct Answer:
D. 10.8 s
When trains move in opposite directions, their relative speed is summed. Convert speeds to m/s and total distance to meters. Time is total distance divided by relative speed, yielding 10.8 seconds.
Related MCQs
Who was the first Commander-in-Chief of the Pakistan Air Force?
A.
Air Marshal Frank Murphy
B.
Air Marshal Asghar Khan
C.
Air Vice Marshal Zafar Khan
D.
Air Vice Marshal Allan Perry Keene
Correct answer is:
D. Air Vice Marshal Allan Perry Keene
Change the voice: The doctor bandaged the arm of the injured man.
A.
The injured man bandaged his arm
B.
The doctor injured and bandaged the arm of a man
C.
The injured man's arm is bandaged
D.
The arm of the injured man was bandaged by the doctor
Correct answer is:
D. The arm of the injured man was bandaged by the doctor
The intensity of an earthquake is measured by:
A.
Seismograph
B.
Richter scale
C.
Barometer
D.
Thermometer
Correct answer is:
B. Richter scale
Pakistan & France agreed on 31 July 1951 to initiate
A.
Embassy Service
B.
Nuclear Deal
C.
Economic Ties
D.
None
Correct answer is:
A. Embassy Service
Choose correct Analogy: Shale: Geologist
A.
Reef: Astrologist
B.
Fossils: Paleontologist
C.
Biologist: Plants
D.
Catacombs: Entomologist
Correct answer is:
B. Fossils: Paleontologist
Nagorno-Karabakh conflict led to full-scale war between?
A.
Russia and Ukraine
B.
Armenia and Azerbaijan
C.
China and India
D.
Israel and Palestine
Correct answer is:
B. Armenia and Azerbaijan