Question : At a certain speed a car covers a distance of 46 km in 2 hours. How much distance will it cover in 3 hour?
Correct Answer 69 km
Solution & Explanation
Solution
Given,
Distance = 46 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
= 46/2 = 23 km/h
Thus, speed = 23 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 23 km/h × 3 hour = 69 km
Thus, the distance covered in the given time = 69 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 46 km
Time = 2 hour
Thus, distance covers in 3 hour = ?
∵ In 2 hours the distance covered = 46 km
∴ In 1 hour the distance covered = 46/2 km
∴ In 3 hours the distance covered
= 46/2 × 3 km
= 46 × 3/2 km
= 138/2 = 69 km
Thus, the distance covered in the given time = 69 km Answer
Similar Questions
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(2) By running at a speed of 42 km/h how much distance a bus will cover in 9 second?
(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 22 km/h how much distance a scooty will cover in 7 second?
(7) Find the distance covered by a cyclist in 21 hours if it covers a distance of 90 km in 11 hours.