Time and Distance
Math MCQs

Question :    By running at a speed of 18 km/h how much distance a motor bike will cover in 8 second?

Correct Answer  40 meter

Solution & Explanation

Solution

Given,

Speed = 18 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, 18 km/h = 18 × ⁵/₁₈ m/s

= ^{18 × 5}/₁₈ m/s

= ⁹⁰/₁₈ = 5 m/s

Thus, speed = 5 m/s

Calculation of distance using formula

Formula to calculate distance when speed and time are given

Distance = Speed × Time

⇒ Distance = 5 m/s × 8 s = 40 m

Thus, distance = 40 meter Answer

Calculation of distance using Unitary Method

∵ In 1 second the distance covered = 5 meter

∴ In 8 second, the distance covered = 5 m × 8 = meter

Thus, distance = 40 meter Answer

Similar Questions

(1) By running at a speed of 20 km/h how much distance a car will cover in 5 second?

(2) Find the distance covered by a ball in 26 hours if it covers a distance of 72 km in 16 hours.

(3) At a certain speed a scooty covers a distance of 46 km in 4 hours. How much distance will it cover in 5 hour?

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

(5) At a certain speed a scooty covers a distance of 54 km in 4 hours. How much distance will it cover in 5 hour?

(6) Find the distance covered by a scooty in 22 hours if it covers a distance of 78 km in 12 hours.

(7) Find the distance covered by a car in 20 hours if it covers a distance of 98 km in 10 hours.

(8) By running at a speed of 21 km/h how much distance a motor bike will cover in 8 second?

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

(10) Find the distance covered by a bus in 24 hours if it covers a distance of 88 km in 14 hours.