12. A car started from Town P and travelled towards Town Q at 70 km/h from Town Q and travelled to Town Pat 60 km/h. After 11/4 towards each other. (i) What is the distance between the two towns? (ii) After how many hours of travel would they cross each othe
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Answers
Answer:
Given : A car started from Town P and traveled towards Town Q at 70km/h.
a van started from Town Q and travelled to Town P 60km/h.
After 11/4 hours, I they were 65km apart, still traveling towards each other.
To Find : (1.) What is the distance between the two towns?
(2.) After how many hours of travel would they cross each other?
Solution:
car started from Town P and traveled towards Town Q at 70km/h.
Speed = 70 km/hr
Time = 11/4 hr
Distance = Speed x Time
=> Distance = 70 x (11/4)
=> Distance = 770/4
=> Distance = 192.5 km
a van started from Town Q and travelled to Town P 60km/h.
Speed = 60 km/hr
Time = 11/4 hr
Distance = Speed x Time
=> Distance = 60 x (11/4)
=> Distance = 660/4
=> Distance = 165 km
Distance between them = 65 km
distance between the two towns = 192.5 + 165 + 65
= 422.5 km
Distance covered by both together in 1 hr = 70 + 60 = 130 km
Time taken = 422.5 /130 = 3.25 hrs
= 13/4 hrs
Step-by-step explanation: