Question:
At a certain speed a car covers a distance of 100 km in 2 hours. How much distance will it cover in 3 hour?
Correct Answer
150 km
Solution And Explanation
Solution
Given,
Distance = 100 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
= 100/2 = 50 km/h
Thus, speed = 50 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 50 km/h × 3 hour = 150 km
Thus, the distance covered in the given time = 150 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 100 km
Time = 2 hour
Thus, distance covers in 3 hour = ?
∵ In 2 hours the distance covered = 100 km
∴ In 1 hour the distance covered = 100/2 km
∴ In 3 hours the distance covered
= 100/2 × 3 km
= 100 × 3/2 km
= 300/2 = 150 km
Thus, the distance covered in the given time = 150 km Answer
Similar Questions
(1) At a certain speed a cyclist covers a distance of 24 km in 3 hours. How much distance will it cover in 4 hour?
(2) Find the distance covered by a car in 20 hours if it covers a distance of 68 km in 10 hours.
(3) By running at a speed of 49 km/h how much distance an athlete will cover in 10 second?
(4) An athlete takes 1 minute 20 second to complete a race of 1000 meter. Find the speed of the athlete in kilometre per hour.
(5) By running at a speed of 35 km/h how much distance a motor bike will cover in 8 second?
(6) By running at a speed of 4 km/h how much distance a bus will cover in 9 second?
(7) By running at a speed of 34 km/h how much distance a cyclist will cover in 6 second?
(8) Find the distance covered by a cyclist in 21 hours if it covers a distance of 88 km in 11 hours.
(9) At a certain speed a cyclist covers a distance of 60 km in 3 hours. How much distance will it cover in 4 hour?
(10) Find the distance covered by a motor bike in 23 hours if it covers a distance of 90 km in 13 hours.