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Question 44
Raj takes $$2\dfrac{1}{3}$$ hours to complete a certain distance at a speed of 51 km/hr. What time would Kiran take to complete the same distance at a speed of 68km/hr?
Solution
Speed of Raj = 51 km/hr
Time taken by Raj to travel a certain distance = $$2\dfrac{1}{3} = \dfrac{7}{3}$$ hours
Hence, Distance travelled by Raj = $$\dfrac{7}{3} \times 51 = 119 km$$
Given, Speed of Kiran = 68 km/hr
Time required for Kiran to travel 119 km at 68 km/hr = $$\dfrac{119}{68} = \dfrac{7}{4} = 1\dfrac{3}{4}$$ hours
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