Question

(i)
It takes a cyclist 44 minutes to cycle a distance of 11 km.
(a) How long will it take him to cycle a distance of
45 km,
(ii) 36 km,
(iii) 20 km?
(b) What is the speed of the cyclist in m/s?​

Answer 1

Answer:

Step-by-step explanation:

It takes 44min to cover 11km

Time∝ Distance

So,

(a)Let time to cover 45 km = x min

11x = 45*44

=> x = 180 min or 3 hr

Hence, Time = 180 min or 3 hr

(ii)Let the time taken to cover 36 km = x min

11x = 36*44

=> x = 144 min or 2 hr 24 min

Hence, Time = 144 min or 2 hr 24 min

(iii) Let the time taken = x min

11x = 20*44

=> x = 80 min or 1 hr 20 min

Hence, Time = 80 min or 1 hr 20 min

(b)We know that,

Speed = Distance/Time

=> Speed = 11*1000/44*60 (Converting into m/sec)

=> Speed = 8.33m/sec

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