GATE 2019
October 5, 2023GATE 2019
October 5, 2023GATE 2019
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Question 4
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Two cars start at the same time from the same location and go in the same direction. The speed of the first car is 50 Km/h and the speed of the second car is 60 Km/h. The number of hours it takes for the distance between the two cars to be 20 Km is _____.
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2
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3
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1
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6
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Question 4 Explanation:
Speed of the first car = 50 km/h
Speed of the second car = 60 km/h
Let no. of hours = x say
⇒ From the question we can write
(60)x – (50)x = 20
10x = 20
∴ x = 2 hrs
Speed of the second car = 60 km/h
Let no. of hours = x say
⇒ From the question we can write
(60)x – (50)x = 20
10x = 20
∴ x = 2 hrs
Correct Answer: A
Question 4 Explanation:
Speed of the first car = 50 km/h
Speed of the second car = 60 km/h
Let no. of hours = x say
⇒ From the question we can write
(60)x – (50)x = 20
10x = 20
∴ x = 2 hrs
Speed of the second car = 60 km/h
Let no. of hours = x say
⇒ From the question we can write
(60)x – (50)x = 20
10x = 20
∴ x = 2 hrs