Question:
At a certain speed a car covers a distance of 90 km in 2 hours. How much distance will it cover in 3 hour?
Correct Answer
135 km
Solution And Explanation
Solution
Given,
Distance = 90 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
= 90/2 = 45 km/h
Thus, speed = 45 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 45 km/h × 3 hour = 135 km
Thus, the distance covered in the given time = 135 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 90 km
Time = 2 hour
Thus, distance covers in 3 hour = ?
∵ In 2 hours the distance covered = 90 km
∴ In 1 hour the distance covered = 90/2 km
∴ In 3 hours the distance covered
= 90/2 × 3 km
= 90 × 3/2 km
= 270/2 = 135 km
Thus, the distance covered in the given time = 135 km Answer
Similar Questions
(1) By running at a speed of 46 km/h how much distance a car will cover in 5 second?
(2) Find the distance covered by a moving object in 28 hours if it covers a distance of 88 km in 18 hours.
(3) At a certain speed a scooty covers a distance of 18 km in 4 hours. How much distance will it cover in 5 hour?
(4) Find the distance covered by a cyclist in 21 hours if it covers a distance of 82 km in 11 hours.
(5) By running at a speed of 32 km/h how much distance a motor bike will cover in 8 second?
(6) By running at a speed of 29 km/h how much distance a scooty will cover in 7 second?
(7) By running at a speed of 3 km/h how much distance a car will cover in 5 second?
(8) Find the distance covered by a cricket ball in 27 hours if it covers a distance of 66 km in 17 hours.
(9) Find the distance covered by a cyclist in 21 hours if it covers a distance of 50 km in 11 hours.
(10) By running at a speed of 4 km/h how much distance an athlete will cover in 10 second?