Time and Distance
Math MCQs

Question :    By running at a speed of 23 km/h how much distance a bus will cover in 9 second?

Correct Answer  57.51 meter

Solution & Explanation

Solution

Given,

Speed = 23 km/h

Time = 9 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 × 9 s = 57.51 m

Thus, distance = 57.51 meter Answer

Calculation of distance using Unitary Method

∵ In 1 second the distance covered = 6.39 meter

∴ In 9 second, the distance covered = 6.39 m × 9 = meter

Thus, distance = 57.51 meter Answer

Similar Questions

(1) By running at a speed of 15 km/h how much distance a scooty will cover in 7 second?

(2) By running at a speed of 19 km/h how much distance a scooty will cover in 7 second?

(3) Find the distance covered by an athlete in 25 hours if it covers a distance of 100 km in 15 hours.

(4) By running at a speed of 40 km/h how much distance a scooty will cover in 7 second?

(5) Find the distance covered by an athlete in 25 hours if it covers a distance of 68 km in 15 hours.

(6) Find the distance covered by a moving object in 28 hours if it covers a distance of 60 km in 18 hours.

(7) By running at a speed of 39 km/h how much distance a scooty will cover in 7 second?

(8) Find the distance covered by a cricket ball in 27 hours if it covers a distance of 52 km in 17 hours.

(9) At a certain speed a scooty covers a distance of 42 km in 4 hours. How much distance will it cover in 5 hour?

(10) By running at a speed of 31 km/h how much distance a car will cover in 5 second?