Question:
At a certain speed a car covers a distance of 86 km in 2 hours. How much distance will it cover in 3 hour?
Correct Answer
129 km
Solution And Explanation
Solution
Given,
Distance = 86 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
= 86/2 = 43 km/h
Thus, speed = 43 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 43 km/h × 3 hour = 129 km
Thus, the distance covered in the given time = 129 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 86 km
Time = 2 hour
Thus, distance covers in 3 hour = ?
∵ In 2 hours the distance covered = 86 km
∴ In 1 hour the distance covered = 86/2 km
∴ In 3 hours the distance covered
= 86/2 × 3 km
= 86 × 3/2 km
= 258/2 = 129 km
Thus, the distance covered in the given time = 129 km Answer
Similar Questions
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(2) By running at a speed of 37 km/h how much distance a car will cover in 5 second?
(3) Find the distance covered by a cricket ball in 27 hours if it covers a distance of 84 km in 17 hours.
(4) Find the distance covered by a car in 20 hours if it covers a distance of 70 km in 10 hours.
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(6) By running at a speed of 10 km/h how much distance a cyclist will cover in 6 second?
(7) Find the distance covered by a ball in 26 hours if it covers a distance of 68 km in 16 hours.
(8) By running at a speed of 49 km/h how much distance a cyclist will cover in 6 second?
(9) After spotting a deer at a distance of 500 m, a tiger takes 1 minute 05 second to catch the prey. If after spotting the deer, the tiger takes about 15 second in thinking and then starts running, then find the speed of the tiger in kilometre per hour.
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