Question:
At a certain speed a car covers a distance of 36 km in 2 hours. How much distance will it cover in 3 hour?
Correct Answer
54 km
Solution And Explanation
Solution
Given,
Distance = 36 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
= 36/2 = 18 km/h
Thus, speed = 18 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 18 km/h × 3 hour = 54 km
Thus, the distance covered in the given time = 54 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 36 km
Time = 2 hour
Thus, distance covers in 3 hour = ?
∵ In 2 hours the distance covered = 36 km
∴ In 1 hour the distance covered = 36/2 km
∴ In 3 hours the distance covered
= 36/2 × 3 km
= 36 × 3/2 km
= 108/2 = 54 km
Thus, the distance covered in the given time = 54 km Answer
Similar Questions
(1) At a certain speed a car covers a distance of 38 km in 2 hours. How much distance will it cover in 3 hour?
(2) At a certain speed a car covers a distance of 28 km in 2 hours. How much distance will it cover in 3 hour?
(3) By running at a speed of 49 km/h how much distance a bus will cover in 9 second?
(4) By running at a speed of 44 km/h how much distance an athlete will cover in 10 second?
(5) By running at a speed of 45 km/h how much distance an athlete will cover in 10 second?
(6) Find the distance covered by a moving object in 28 hours if it covers a distance of 82 km in 18 hours.
(7) At a certain speed a cyclist covers a distance of 20 km in 3 hours. How much distance will it cover in 4 hour?
(8) By running at a speed of 30 km/h how much distance a bus will cover in 9 second?
(9) If a cyclist takes 5 hours to cover a distance of 30 km, then what will be his speed in meter per minute?
(10) By running at a speed of 48 km/h how much distance an athlete will cover in 10 second?