Question

Question 12.
A man walks 20 km in 5 hours. How long would he take in walking 32 km?
(a) 3 hours
(b) 4 hours
(c) 6 hours
(d) 8 hours.​

Answer 1

Answer:

(d) 8 hours.

Is your required answer..

Answer 2

Time taken to cover 20 km at speed 5 km/hr = 4 hours

∴ Fixed time = 4 hour - 40 minutes = 3 hour 20 min

Time taken to cover 20 km at the speed 8 km/hr = 20/8 = 2 hours 30 minutes

∴ Required time = 3 hours 20 minutes - 2 hr 30 min

=50 minutes

(d)