Question : Find the distance covered by a car in 20 hours if it covers a distance of 70 km in 10 hours.
Correct Answer 140 km
Solution & Explanation
Solution
Given,
Distance = 70 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
= 70/10 = 7 km/h
Thus, speed = 7 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 7 km/h × 20 hour = 140 km
Thus, the distance covered in the given time = 140 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 70 km
Time = 10 hour
Thus, distance covers in 20 hour = ?
∵ In 10 hours the distance covered = 70 km
∴ In 1 hour the distance covered = 70/10 km
∴ In 20 hours the distance covered
= 70/10 × 20 km
= 70 × 20/10 km
= 1400/10 = 140 km
Thus, the distance covered in the given time = 140 km Answer
Similar Questions
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(2) By running at a speed of 36 km/h how much distance a car will cover in 5 second?
(4) By running at a speed of 46 km/h how much distance a motor bike will cover in 8 second?
(5) By running at a speed of 22 km/h how much distance a bus will cover in 9 second?
(6) By running at a speed of 44 km/h how much distance a car will cover in 5 second?
(7) By running at a speed of 22 km/h how much distance a cyclist will cover in 6 second?
(8) Find the distance covered by a cyclist in 21 hours if it covers a distance of 72 km in 11 hours.
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