Question : Find the distance covered by a car in 20 hours if it covers a distance of 64 km in 10 hours.
Correct Answer 128 km
Solution & Explanation
Solution
Given,
Distance = 64 km
Time = 10 hour
Thus, distance covers in 20 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
= 64/10 = 6.4 km/h
Thus, speed = 6.4 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 6.4 km/h × 20 hour = 128 km
Thus, the distance covered in the given time = 128 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 64 km
Time = 10 hour
Thus, distance covers in 20 hour = ?
∵ In 10 hours the distance covered = 64 km
∴ In 1 hour the distance covered = 64/10 km
∴ In 20 hours the distance covered
= 64/10 × 20 km
= 64 × 20/10 km
= 1280/10 = 128 km
Thus, the distance covered in the given time = 128 km Answer
Similar Questions
(1) Find the distance covered by a car in 20 hours if it covers a distance of 74 km in 10 hours.
(2) Find the distance covered by a motor bike in 23 hours if it covers a distance of 58 km in 13 hours.
(4) By running at a speed of 14 km/h how much distance a motor bike will cover in 8 second?
(5) By running at a speed of 40 km/h how much distance an athlete will cover in 10 second?
(7) By running at a speed of 42 km/h how much distance an athlete will cover in 10 second?
(8) Find the distance covered by a motor bike in 23 hours if it covers a distance of 64 km in 13 hours.
(9) By running at a speed of 12 km/h how much distance a bus will cover in 9 second?
(10) By running at a speed of 22 km/h how much distance an athlete will cover in 10 second?