Question:
( 16 of 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?
(A) 3459
(B) 1729.5
(C) 3458
(D) 3460
You selected
14.4 km
Correct Answer
18 km
Solution And Explanation
Solution
Given,
Distance = 12 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
= 12/2 = 6 km/h
Thus, speed = 6 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 6 km/h × 3 hour = 18 km
Thus, the distance covered in the given time = 18 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 12 km
Time = 2 hour
Thus, distance covers in 3 hour = ?
∵ In 2 hours the distance covered = 12 km
∴ In 1 hour the distance covered = 12/2 km
∴ In 3 hours the distance covered
= 12/2 × 3 km
= 12 × 3/2 km
= 36/2 = 18 km
Thus, the distance covered in the given time = 18 km Answer
Similar Questions
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(2) By running at a speed of 35 km/h how much distance a car will cover in 5 second?
(3) By running at a speed of 41 km/h how much distance a bus will cover in 9 second?
(4) By running at a speed of 47 km/h how much distance a scooty will cover in 7 second?
(5) By running at a speed of 16 km/h how much distance a bus will cover in 9 second?
(6) By running at a speed of 19 km/h how much distance a motor bike will cover in 8 second?
(7) Find the distance covered by a scooty in 22 hours if it covers a distance of 84 km in 12 hours.
(8) Find the distance covered by a cyclist in 21 hours if it covers a distance of 88 km in 11 hours.
(9) Find the distance covered by a ball in 26 hours if it covers a distance of 50 km in 16 hours.
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