A) 78 km/h
B) 72 km/h
C) 84 km/h
D) 88 km/h
Correct Answer: A
Solution :
[a] \[\therefore \] Distance covered by truck in \[8\,h=63\times 8=504\,km\] and distance covered by car in 8 h \[=504+120\] \[=624\,km\] Hence, speed of car \[\frac{\text{Distance}\,\,\text{covered}}{\text{Time}\,\,\text{taken}}\] \[=\frac{624}{8}=78\,km/h\] |
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