Pilar is playing with a motorized toy boat.
She puts the boat in a lake and it travels m at a constant speed.
On the way back to Pilar, the boat travels the same route at the same speed for minutes, and then Pilar uses the remote control to increase the boat's speed by m/min.
So the return trip is seconds faster. How long does the return trip take?
The trip normally takes minutes:
Step-by-step explanation:
The given information states that the away distance the boat traveled : m
The time traveled at the same initial speed , v₁, by the boat on the way back : minutes
The increase in speed of the boat by Pilar : m/min
The new speed,
The time for the return trip, seconds (1 minute) faster than time for the trip,
Therefore we have;
Which gives;
Given that is a natural number, we have, minutes
Whereby, we have;
Hence, The trip normally takes minutes.