Question:
( 1 of 10 ) By running at a speed of 13 km/h how much distance a scooty will cover in 7 second?
(A) 146 years and 46 years
(B) 96 years and 50 years
(C) 144 years and 75 years
(D) 192 years and 100 years
You selected
12.635 meter
Correct Answer
25.27 meter
Solution And Explanation
Solution
Given,
Speed = 13 km/h
Time = 7 second
Thus, distance = ?
Here the speed is given in the kilometer per hour while the time is in the second. So, for the ease of calculation, the speed should be converted into meter per second.
Conversion of the speed from kilometer per hour to meter per second
To convert kilometer per hour, the speed is multiplied by 5/18
Therefore, 13 km/h = 13 × 5/18 m/s
= 13 × 5/18 m/s
= 65/18 = 3.61 m/s
Thus, speed = 3.61 m/s
Calculation of distance using formula
Formula to calculate distance when speed and time are given
Distance = Speed × Time
⇒ Distance = 3.61 m/s × 7 s = 25.27 m
Thus, distance = 25.27 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 3.61 meter
∴ In 7 second, the distance covered = 3.61 m × 7 = meter
Thus, distance = 25.27 meter Answer
Similar Questions
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(2) Find the distance covered by a ball in 26 hours if it covers a distance of 82 km in 16 hours.
(3) Find the distance covered by a cricket ball in 27 hours if it covers a distance of 54 km in 17 hours.
(4) At a certain speed a car covers a distance of 44 km in 2 hours. How much distance will it cover in 3 hour?
(5) Find the distance covered by a car in 20 hours if it covers a distance of 100 km in 10 hours.
(6) Find the distance covered by a cricket ball in 27 hours if it covers a distance of 94 km in 17 hours.
(7) By running at a speed of 35 km/h how much distance a car will cover in 5 second?
(8) Find the distance covered by a moving object in 28 hours if it covers a distance of 78 km in 18 hours.
(9) By running at a speed of 15 km/h how much distance a scooty will cover in 7 second?
(10) By running at a speed of 20 km/h how much distance a cyclist will cover in 6 second?