Time and Distance
Math MCQs

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

Correct Answer  3.92 meter

Solution & Explanation

Solution

Given,

Speed = 2 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, 2 km/h = 2 × ⁵/₁₈ m/s

= ^{2 × 5}/₁₈ m/s

= ¹⁰/₁₈ = 0.56 m/s

Thus, speed = 0.56 m/s

Calculation of distance using formula

Formula to calculate distance when speed and time are given

Distance = Speed × Time

⇒ Distance = 0.56 m/s × 7 s = 3.92 m

Thus, distance = 3.92 meter Answer

Calculation of distance using Unitary Method

∵ In 1 second the distance covered = 0.56 meter

∴ In 7 second, the distance covered = 0.56 m × 7 = meter

Thus, distance = 3.92 meter Answer

Similar Questions

(1) At a certain speed a car covers a distance of 98 km in 2 hours. How much distance will it cover in 3 hour?

(2) By running at a speed of 29 km/h how much distance a scooty will cover in 7 second?

(3) At a certain speed a car covers a distance of 28 km in 2 hours. How much distance will it cover in 3 hour?

(4) Find the distance covered by a cyclist in 21 hours if it covers a distance of 76 km in 11 hours.

(5) By running at a speed of 21 km/h how much distance a bus will cover in 9 second?

(6) By running at a speed of 37 km/h how much distance a car will cover in 5 second?

(7) Find the distance covered by a ball in 26 hours if it covers a distance of 64 km in 16 hours.

(8) Find the distance covered by a cyclist in 21 hours if it covers a distance of 54 km in 11 hours.

(9) Find the distance covered by a cyclist in 21 hours if it covers a distance of 92 km in 11 hours.

(10) Find the distance covered by a bus in 24 hours if it covers a distance of 62 km in 14 hours.