Question:
( 4 of 10 ) Find the distance covered by a car in 20 hours if it covers a distance of 90 km in 10 hours.
(A) 470%
(B) 705%
(C) 235%
(D) 587.5%
You selected
144 km
Correct Answer
180 km
Solution And Explanation
Solution
Given,
Distance = 90 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
= 90/10 = 9 km/h
Thus, speed = 9 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 9 km/h × 20 hour = 180 km
Thus, the distance covered in the given time = 180 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 90 km
Time = 10 hour
Thus, distance covers in 20 hour = ?
∵ In 10 hours the distance covered = 90 km
∴ In 1 hour the distance covered = 90/10 km
∴ In 20 hours the distance covered
= 90/10 × 20 km
= 90 × 20/10 km
= 1800/10 = 180 km
Thus, the distance covered in the given time = 180 km Answer
Similar Questions
(1) At a certain speed a car covers a distance of 44 km in 2 hours. How much distance will it cover in 3 hour?
(2) By running at a speed of 14 km/h how much distance a bus will cover in 9 second?
(3) By running at a speed of 6 km/h how much distance a cyclist will cover in 6 second?
(4) Find the distance covered by a moving object in 28 hours if it covers a distance of 94 km in 18 hours.
(5) 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.
(6) At a certain speed a cyclist covers a distance of 66 km in 3 hours. How much distance will it cover in 4 hour?
(7) By running at a speed of 42 km/h how much distance a motor bike will cover in 8 second?
(8) At a certain speed a cyclist covers a distance of 68 km in 3 hours. How much distance will it cover in 4 hour?
(9) Find the distance covered by a cyclist in 21 hours if it covers a distance of 60 km in 11 hours.
(10) At a certain speed a car covers a distance of 12 km in 2 hours. How much distance will it cover in 3 hour?