question no 2.
pls solve it
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Case 1st:-
Distance = 2.5km
Speed = 5km/hr
Time = Distance/time = 2.5/5 = 0.5hr
0.5hr = 5/10hr = (5/10)×60 = 30minutes
Case 2nd:-
Distance = 2.5km
Speed = 7.5km/hr
Time = Distance/speed = 2.5/7.5 = 1/3hr
1/3hr = 1/3×60 = 20minutes
Total Distance travelled in 50 minutes = 2.5+2.5 = 5km
Total time taken = 50minutes = 5/6hr
Average speed = Total Distance/Total time
=>5÷5/6
=>5×6/5
=>6km/hr
Idk why none of the options has 6km/hr :v but I have checked my answer multiple times and I can't find any mistakes, maybe the question is wrong?
Cheers!
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