Time and Distance
Math MCQs

Question :    Find the distance covered by an athlete in 25 hours if it covers a distance of 84 km in 15 hours.

Correct Answer  140 km

Solution & Explanation

Solution

Given,

Distance = 84 km

Time = 15 hour

Thus, distance covers in 25 hour = ?

Here the speed and time are given. So, we need to find the speed to calculate the distance covers in the given time.

Method (1) Using Formula

Calculation of Speed using formula

Formula to find the speed

Speed = ^Distance/_Time

= ⁸⁴/₁₅ = 5.6 km/h

Thus, speed = 5.6 km/h

Calculation of the distance in the given time using formula

Formula to find the distance

Distance = Speed × Time

= 5.6 km/h × 25 hour = 140 km

Thus, the distance covered in the given time = 140 km Answer

Method (2) Using Unitary Method

Calculation of the Distance using formula

Given,

Distance = 84 km

Time = 15 hour

Thus, distance covers in 25 hour = ?

∵ In 15 hours the distance covered = 84 km

∴ In 1 hour the distance covered = ⁸⁴/₁₅ km

∴ In 25 hours the distance covered

= ⁸⁴/₁₅ × 25 km

= ^{84 × 25}/₁₅ km

= ²¹⁰⁰/₁₅ = 140 km

Thus, the distance covered in the given time = 140 km Answer

Similar Questions

(1) At a certain speed a cyclist covers a distance of 10 km in 3 hours. How much distance will it cover in 4 hour?

(2) Find the distance covered by a car in 20 hours if it covers a distance of 56 km in 10 hours.

(3) Find the distance covered by a moving object in 28 hours if it covers a distance of 80 km in 18 hours.

(4) At a certain speed a scooty covers a distance of 68 km in 4 hours. How much distance will it cover in 5 hour?

(5) By running at a speed of 16 km/h how much distance a car will cover in 5 second?

(6) By running at a speed of 46 km/h how much distance a car will cover in 5 second?

(7) At a certain speed a car covers a distance of 40 km in 2 hours. How much distance will it cover in 3 hour?

(8) Find the distance covered by a ball in 26 hours if it covers a distance of 56 km in 16 hours.

(9) By running at a speed of 39 km/h how much distance an athlete will cover in 10 second?

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