Question

A bus was travelling at 55 km/hr. After ‘x’ hours, its speed increased by 12 km/hr and it continued for (x + 6) hours. If it covered 612 km in these (x + 6) hours, calculate the distance travelled in the first ‘x’ hours.

A 190.15 km
B 172.15 km
C 128.15 km
D 275.15 km
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