Question 769357
{{{02:50+highlight(+24:00)=26:50}}}
The reason adding 24:00 to 02:50 is to make it subtractable by 19:25.
{{{26:50-19.25=7:25}}}
This subtraction has shown that the total time taken on the journey is 7 hours 25 minutes.
Q1
Time taken for the bus to take to its journey
={{{7 hours 25 minutes}}}
={{{7 hours+25 minutes}}}
={{{(7x60)minutes+25 minutes}}}
={{{445 minutes}}}
Q2
Time taken for the bus to take to travel 1 kilometer
={{{((445x60)seconds)/540}}}
={{{(26700 seconds)/540}}}
={{{49seconds}}}
Q3
The average speed of the bus
={{{((7 hours 25 minutes)/540km)}}}
={{{((7 hours+25 minutes)/540km)}}}
={{{(7 hours+(25/60)hours)/540km}}}
={{{((7+25/60)hours)/540km}}}
={{{((89/12)hours)/540km}}}
={{{0.01373kmh^(-1)}}}