Question : At a certain speed a cyclist covers a distance of 84 km in 3 hours. How much distance will it cover in 4 hour?
Correct Answer 112 km
Solution & Explanation
Solution
Given,
Distance = 84 km
Time = 3 hour
Thus, distance covers in 4 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
= 84/3 = 28 km/h
Thus, speed = 28 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 28 km/h × 4 hour = 112 km
Thus, the distance covered in the given time = 112 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 84 km
Time = 3 hour
Thus, distance covers in 4 hour = ?
∵ In 3 hours the distance covered = 84 km
∴ In 1 hour the distance covered = 84/3 km
∴ In 4 hours the distance covered
= 84/3 × 4 km
= 84 × 4/3 km
= 336/3 = 112 km
Thus, the distance covered in the given time = 112 km Answer
Similar Questions
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(3) Find the distance covered by a car in 20 hours if it covers a distance of 62 km in 10 hours.
(4) By running at a speed of 12 km/h how much distance a scooty will cover in 7 second?
(5) By running at a speed of 38 km/h how much distance an athlete will cover in 10 second?
(7) Find the distance covered by an athlete in 25 hours if it covers a distance of 88 km in 15 hours.
(8) By running at a speed of 12 km/h how much distance a motor bike will cover in 8 second?