Question:
Find the distance covered by a moving object in 28 hours if it covers a distance of 90 km in 18 hours.
Correct Answer
140 km
Solution And Explanation
Solution
Given,
Distance = 90 km
Time = 18 hour
Thus, distance covers in 28 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
= 90/18 = 5 km/h
Thus, speed = 5 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 5 km/h × 28 hour = 140 km
Thus, the distance covered in the given time = 140 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 90 km
Time = 18 hour
Thus, distance covers in 28 hour = ?
∵ In 18 hours the distance covered = 90 km
∴ In 1 hour the distance covered = 90/18 km
∴ In 28 hours the distance covered
= 90/18 × 28 km
= 90 × 28/18 km
= 2520/18 = 140 km
Thus, the distance covered in the given time = 140 km Answer
Similar Questions
(1) Find the distance covered by a cyclist in 21 hours if it covers a distance of 98 km in 11 hours.
(2) Find the distance covered by a motor bike in 23 hours if it covers a distance of 60 km in 13 hours.
(3) By running at a speed of 31 km/h how much distance a car will cover in 5 second?
(4) By running at a speed of 29 km/h how much distance a car will cover in 5 second?
(5) At a certain speed a car covers a distance of 92 km in 2 hours. How much distance will it cover in 3 hour?
(6) Find the distance covered by an athlete in 25 hours if it covers a distance of 88 km in 15 hours.
(7) At a certain speed a car covers a distance of 80 km in 2 hours. How much distance will it cover in 3 hour?
(8) Find the distance covered by a cyclist in 21 hours if it covers a distance of 62 km in 11 hours.
(9) By running at a speed of 17 km/h how much distance a bus will cover in 9 second?
(10) At a certain speed a car covers a distance of 20 km in 2 hours. How much distance will it cover in 3 hour?