Question:
At a certain speed a car covers a distance of 82 km in 2 hours. How much distance will it cover in 3 hour?
Correct Answer
123 km
Solution And Explanation
Solution
Given,
Distance = 82 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
= 82/2 = 41 km/h
Thus, speed = 41 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 41 km/h × 3 hour = 123 km
Thus, the distance covered in the given time = 123 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 82 km
Time = 2 hour
Thus, distance covers in 3 hour = ?
∵ In 2 hours the distance covered = 82 km
∴ In 1 hour the distance covered = 82/2 km
∴ In 3 hours the distance covered
= 82/2 × 3 km
= 82 × 3/2 km
= 246/2 = 123 km
Thus, the distance covered in the given time = 123 km Answer
Similar Questions
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(2) By running at a speed of 30 km/h how much distance a bus will cover in 9 second?
(3) By running at a speed of 26 km/h how much distance a scooty will cover in 7 second?
(4) Find the distance covered by a cricket ball in 27 hours if it covers a distance of 84 km in 17 hours.
(5) Find the distance covered by a bus in 24 hours if it covers a distance of 80 km in 14 hours.
(6) By running at a speed of 39 km/h how much distance a motor bike will cover in 8 second?
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(9) Find the distance covered by a cricket ball in 27 hours if it covers a distance of 64 km in 17 hours.
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