Question:
At a certain speed a car covers a distance of 68 km in 2 hours. How much distance will it cover in 3 hour?
Correct Answer
102 km
Solution And Explanation
Solution
Given,
Distance = 68 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
= 68/2 = 34 km/h
Thus, speed = 34 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 34 km/h × 3 hour = 102 km
Thus, the distance covered in the given time = 102 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 68 km
Time = 2 hour
Thus, distance covers in 3 hour = ?
∵ In 2 hours the distance covered = 68 km
∴ In 1 hour the distance covered = 68/2 km
∴ In 3 hours the distance covered
= 68/2 × 3 km
= 68 × 3/2 km
= 204/2 = 102 km
Thus, the distance covered in the given time = 102 km Answer
Similar Questions
(1) At a certain speed a car covers a distance of 32 km in 2 hours. How much distance will it cover in 3 hour?
(2) Find the distance covered by a car in 20 hours if it covers a distance of 64 km in 10 hours.
(3) By running at a speed of 48 km/h how much distance a bus will cover in 9 second?
(4) Find the distance covered by an athlete in 25 hours if it covers a distance of 70 km in 15 hours.
(5) By running at a speed of 22 km/h how much distance an athlete will cover in 10 second?
(6) By running at a speed of 42 km/h how much distance a bus will cover in 9 second?
(7) If a cyclist takes 5 hours to cover a distance of 30 km, then what will be his speed in meter per minute?
(8) Find the distance covered by a moving object in 28 hours if it covers a distance of 80 km in 18 hours.
(9) An athlete takes 15 hours to finish a race of 75 km. Calculate the speed of athlete in meter per second.
(10) At a certain speed a scooty covers a distance of 50 km in 4 hours. How much distance will it cover in 5 hour?