Question 169
Raj and Prem walk in opposite directions at the rate of 3 km and 2 km per hour respectively. How far will they be from each other after 2 hours ?
Solution
Since Raj and Prem walks in opposite directions, their relative speed will be sum of their individual speeds i.e.
Speed, $$s$$ = 3+2 = 5 kmph
Now, distance covered in 2 hours = time * speed
= 5*2 = 10 km
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