Question:
At a certain speed a car covers a distance of 18 km in 2 hours. How much distance will it cover in 3 hour?
Correct Answer
27 km
Solution And Explanation
Solution
Given,
Distance = 18 km
Time = 2 hour
Thus, distance covers in 3 hour = ?
Here the speed and time are given. So, we need to find the speed to calculate the distance covers in the given time.
Method (1) Using Formula
Calculation of Speed using formula
Formula to find the speed
Speed = Distance/Time
= 18/2 = 9 km/h
Thus, speed = 9 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 9 km/h × 3 hour = 27 km
Thus, the distance covered in the given time = 27 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 18 km
Time = 2 hour
Thus, distance covers in 3 hour = ?
∵ In 2 hours the distance covered = 18 km
∴ In 1 hour the distance covered = 18/2 km
∴ In 3 hours the distance covered
= 18/2 × 3 km
= 18 × 3/2 km
= 54/2 = 27 km
Thus, the distance covered in the given time = 27 km Answer
Similar Questions
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(2) By running at a speed of 19 km/h how much distance a car will cover in 5 second?
(3) By running at a speed of 11 km/h how much distance a motor bike will cover in 8 second?
(4) Find the distance covered by a car in 20 hours if it covers a distance of 52 km in 10 hours.
(5) Find the distance covered by a cyclist in 21 hours if it covers a distance of 56 km in 11 hours.
(6) By running at a speed of 12 km/h how much distance a cyclist will cover in 6 second?
(7) Find the distance covered by a motor bike in 23 hours if it covers a distance of 84 km in 13 hours.
(8) At a certain speed a car covers a distance of 54 km in 2 hours. How much distance will it cover in 3 hour?
(9) By running at a speed of 13 km/h how much distance a motor bike will cover in 8 second?
(10) By running at a speed of 27 km/h how much distance a car will cover in 5 second?