MCQEasy1 mark
1
Choose the correct answers to the questions from the given options. (Do not copy the questions, write the correct answers only.)
The given table shows the distance covered and the time taken by a train moving at a uniform speed along a straight track. The values of x and y are :
Topic: Ratio and proportion
Previous-year question practice database
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Answer
Exam answer
(d) At uniform speed: distance/time = constant.
From the complete pair: speed = 60/2 = 30 units per second.
For distance 90: 90/x = 30 x = 3.
For time 5: y/5 = 30 y = 150.
Answer: x = 3, y = 150.
Explanation
At uniform speed, distance is directly proportional to time and distance/time remains constant.
In words
At uniform speed: distance/time = constant.
From the complete pair: speed = 60/2 = 30 units per second.
For distance 90: 90/x = 30 x = 3.
For time 5: y/5 = 30 y = 150.
Answer: x = 3, y = 150.
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