Time and Distance
Math MCQs

Question :    By running at a speed of 14 km/h how much distance a scooty will cover in 7 second?

Correct Answer  27.23 meter

Solution & Explanation

Solution

Given,

Speed = 14 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, 14 km/h = 14 × ⁵/₁₈ m/s

= ^{14 × 5}/₁₈ m/s

= ⁷⁰/₁₈ = 3.89 m/s

Thus, speed = 3.89 m/s

Calculation of distance using formula

Formula to calculate distance when speed and time are given

Distance = Speed × Time

⇒ Distance = 3.89 m/s × 7 s = 27.23 m

Thus, distance = 27.23 meter Answer

Calculation of distance using Unitary Method

∵ In 1 second the distance covered = 3.89 meter

∴ In 7 second, the distance covered = 3.89 m × 7 = meter

Thus, distance = 27.23 meter Answer

Similar Questions

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

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

(3) Find the distance covered by a cricket ball in 27 hours if it covers a distance of 86 km in 17 hours.

(4) By running at a speed of 11 km/h how much distance a car will cover in 5 second?

(5) At a certain speed a scooty covers a distance of 36 km in 4 hours. How much distance will it cover in 5 hour?

(6) By running at a speed of 37 km/h how much distance a cyclist will cover in 6 second?

(7) 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.

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

(9) By running at a speed of 19 km/h how much distance a car will cover in 5 second?

(10) Find the distance covered by a moving object in 28 hours if it covers a distance of 98 km in 18 hours.