Time and Distance
Math MCQs

Question :    By running at a speed of 23 km/h how much distance a scooty will cover in 7 second?

Correct Answer  44.73 meter

Solution & Explanation

Solution

Given,

Speed = 23 km/h

Time = 7 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, 23 km/h = 23 × ⁵/₁₈ m/s

= ^{23 × 5}/₁₈ m/s

= ¹¹⁵/₁₈ = 6.39 m/s

Thus, speed = 6.39 m/s

Calculation of distance using formula

Formula to calculate distance when speed and time are given

Distance = Speed × Time

⇒ Distance = 6.39 m/s × 7 s = 44.73 m

Thus, distance = 44.73 meter Answer

Calculation of distance using Unitary Method

∵ In 1 second the distance covered = 6.39 meter

∴ In 7 second, the distance covered = 6.39 m × 7 = meter

Thus, distance = 44.73 meter Answer

Similar Questions

(1) By running at a speed of 18 km/h how much distance a bus will cover in 9 second?

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

(3) Find the distance covered by a cyclist in 21 hours if it covers a distance of 56 km in 11 hours.

(4) By running at a speed of 4 km/h how much distance a car will cover in 5 second?

(5) At a certain speed a cyclist covers a distance of 64 km in 3 hours. How much distance will it cover in 4 hour?

(6) 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.

(7) At a certain speed a car covers a distance of 34 km in 2 hours. How much distance will it cover in 3 hour?

(8) At a certain speed a cyclist covers a distance of 14 km in 3 hours. How much distance will it cover in 4 hour?

(9) Find the distance covered by a moving object in 28 hours if it covers a distance of 96 km in 18 hours.

(10) Find the distance covered by a ball in 26 hours if it covers a distance of 98 km in 16 hours.