Question

From the same place at 7:00 a.m. a started walking in the north at the speed of 4 km per hour after 1 hour be started cycling in the east at a speed of 8 kilometre per hour at what time they will be at a distance of 20 km apart from each other

Answer 1

Answer:

a will reach in 4*5=20

so it will take 5 hour

Step-by-step explanation:

half of 8=4 and 8*2=16

16+4 =20

so b will take 2hour 30 minutes