Time and Distance
Math MCQs

Question :    By running at a speed of 47 km/h how much distance a motor bike will cover in 8 second?

Correct Answer  104.48 meter

Solution & Explanation

Solution

Given,

Speed = 47 km/h

Time = 8 second

Thus, distance = ?

Here the speed is given in the kilometer per hour while the time is in the second. So, for the ease of calculation, the speed should be converted into meter per second.

Conversion of the speed from kilometer per hour to meter per second

To convert kilometer per hour, the speed is multiplied by ⁵/₁₈

Therefore, 47 km/h = 47 × ⁵/₁₈ m/s

= ^{47 × 5}/₁₈ m/s

= ²³⁵/₁₈ = 13.06 m/s

Thus, speed = 13.06 m/s

Calculation of distance using formula

Formula to calculate distance when speed and time are given

Distance = Speed × Time

⇒ Distance = 13.06 m/s × 8 s = 104.48 m

Thus, distance = 104.48 meter Answer

Calculation of distance using Unitary Method

∵ In 1 second the distance covered = 13.06 meter

∴ In 8 second, the distance covered = 13.06 m × 8 = meter

Thus, distance = 104.48 meter Answer

Similar Questions

(1) Mr. John went to a nearby city by a train at a speed of 70 km/h and returned home by a taxi at a speed of 50 km/h. What is his average speed in total journey?

(2) Find the distance covered by a moving object in 28 hours if it covers a distance of 82 km in 18 hours.

(3) Find the distance covered by a ball in 26 hours if it covers a distance of 62 km in 16 hours.

(4) At a certain speed a car covers a distance of 48 km in 2 hours. How much distance will it cover in 3 hour?

(5) By running at a speed of 17 km/h how much distance a car will cover in 5 second?

(6) Find the distance covered by a scooty in 22 hours if it covers a distance of 88 km in 12 hours.

(7) By running at a speed of 23 km/h how much distance a motor bike will cover in 8 second?

(8) By running at a speed of 26 km/h how much distance an athlete will cover in 10 second?

(9) By running at a speed of 14 km/h how much distance a bus will cover in 9 second?

(10) Find the distance covered by an athlete in 25 hours if it covers a distance of 50 km in 15 hours.