Question

11) In a race of 1 km, A defeats B by 36 m
or 18 sec. How much time (in sec) did A take
to complete the full distance?
(1) 500 (2) 582
(3) 460 (4) 482​

Answer 1

Answer:

500 Seconds

Step-by-step explanation:

while A defeats B

distance = 36m

time = 18s

speed of A = d/s

speed of A=36/18=2m/s

Total distance =1km= 1000m

speed of A = 2m/s

time taken by A to complete the race= distance/ speed of A

time=1000/2

=500 sec