Discuss Forum
1. Nader drove from Mymensingh to Dhaka at 60 miles/hour. Returning over the same route , there was a lot of traffic , and he was only able to drive at 40 miles/hour . If the return trip took 1 hour longer, what is the distance between Dhaka and Mymensingh ?
- A. 2 miles
- B. 2 miles
- C. 2 miles
- D. 2 miles
Answer: Option C
Explanation:
Let, s = distance between Dhaka to Mymensingh.
t = time taken to travel from Mymensingh to Dhaka
V = velocity
We have s = vt
Hare s(distance) is constant
ATQ
v×t = v1×t1
60t = 40(t + 1)
t = 20
So s = 60×20 = 120 mile
Ans. 120 mile
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