Question : ( 1 of 10 ) At a certain speed a scooty covers a distance of 42 km in 4 hours. How much distance will it cover in 5 hour?
(A) 3144(B) 3143
(C) 3142
(D) 1571.5
Correct Answer 52.5 km
Solution & Explanation
Solution
Given,
Distance = 42 km
Time = 4 hour
Thus, distance covers in 5 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
= 42/4 = 10.5 km/h
Thus, speed = 10.5 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 10.5 km/h × 5 hour = 52.5 km
Thus, the distance covered in the given time = 52.5 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 42 km
Time = 4 hour
Thus, distance covers in 5 hour = ?
∵ In 4 hours the distance covered = 42 km
∴ In 1 hour the distance covered = 42/4 km
∴ In 5 hours the distance covered
= 42/4 × 5 km
= 42 × 5/4 km
= 210/4 = 52.5 km
Thus, the distance covered in the given time = 52.5 km Answer
Similar Questions
(2) Find the distance covered by a ball in 26 hours if it covers a distance of 56 km in 16 hours.
(4) By running at a speed of 42 km/h how much distance a bus will cover in 9 second?
(5) By running at a speed of 13 km/h how much distance a bus will cover in 9 second?
(6) Find the distance covered by a motor bike in 23 hours if it covers a distance of 84 km in 13 hours.
(7) Find the distance covered by a scooty in 22 hours if it covers a distance of 52 km in 12 hours.
(8) Find the distance covered by a ball in 26 hours if it covers a distance of 66 km in 16 hours.
(10) By running at a speed of 38 km/h how much distance a bus will cover in 9 second?