Two race motorbikes, Bike $A$ and Bike $B$, are at the starting point of a lap track at the same tim

Question

Two race motorbikes, Bike $A$ and Bike $B$, are at the starting point of a lap track at the same time. Bike $A$ and Bike $B$ make one lap every $55$s and every $70$s respectively. How long, in seconds, will it take for both motorbikes to be back at the starting point at the same time? How long, in minutes, will it take for the faster bike to be $6$ laps ahead of the slower bike?

Accepted Answer

(i) $770\text{ s}$ (ii) $25\frac{2}{3}\text{ min}$

LCM Applications in Timing and Lap Problems

LCM Applications in Timing and Lap Problems

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