Question:
At a certain speed a car covers a distance of 70 km in 2 hours. How much distance will it cover in 3 hour?
Correct Answer
105 km
Solution And Explanation
Solution
Given,
Distance = 70 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
= 70/2 = 35 km/h
Thus, speed = 35 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 35 km/h × 3 hour = 105 km
Thus, the distance covered in the given time = 105 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 70 km
Time = 2 hour
Thus, distance covers in 3 hour = ?
∵ In 2 hours the distance covered = 70 km
∴ In 1 hour the distance covered = 70/2 km
∴ In 3 hours the distance covered
= 70/2 × 3 km
= 70 × 3/2 km
= 210/2 = 105 km
Thus, the distance covered in the given time = 105 km Answer
Similar Questions
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(2) By running at a speed of 27 km/h how much distance a scooty will cover in 7 second?
(3) Find the distance covered by a moving object in 28 hours if it covers a distance of 100 km in 18 hours.
(4) By running at a speed of 25 km/h how much distance a car will cover in 5 second?
(5) By running at a speed of 17 km/h how much distance a bus will cover in 9 second?
(6) Find the distance covered by a cyclist in 21 hours if it covers a distance of 80 km in 11 hours.
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(8) At a certain speed a cyclist covers a distance of 92 km in 3 hours. How much distance will it cover in 4 hour?
(9) By running at a speed of 45 km/h how much distance a cyclist will cover in 6 second?
(10) Find the distance covered by a motor bike in 23 hours if it covers a distance of 66 km in 13 hours.