Question:
( 19 of 10 ) Find the distance covered by an athlete in 25 hours if it covers a distance of 74 km in 15 hours.
(A) 1265
(B) 632.5
(C) 1264
(D) 1266
You selected
98.6 km
Correct Answer
123.25 km
Solution And Explanation
Solution
Given,
Distance = 74 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
= 74/15 = 4.93 km/h
Thus, speed = 4.93 km/h
Calculation of the distance in the given time using formula
Formula to find the distance
Distance = Speed × Time
= 4.93 km/h × 25 hour = 123.25 km
Thus, the distance covered in the given time = 123.25 km Answer
Method (2) Using Unitary Method
Calculation of the Distance using formula
Given,
Distance = 74 km
Time = 15 hour
Thus, distance covers in 25 hour = ?
∵ In 15 hours the distance covered = 74 km
∴ In 1 hour the distance covered = 74/15 km
∴ In 25 hours the distance covered
= 74/15 × 25 km
= 74 × 25/15 km
= 1850/15 = 123.25 km
Thus, the distance covered in the given time = 123.25 km Answer
Similar Questions
(1) Mr. John went to a nearby city by a train at a speed of 70 km/h and returned home by a taxi at a speed of 50 km/h. What is his average speed in total journey?
(2) At a certain speed a scooty covers a distance of 30 km in 4 hours. How much distance will it cover in 5 hour?
(3) At a certain speed a car covers a distance of 64 km in 2 hours. How much distance will it cover in 3 hour?
(4) By running at a speed of 18 km/h how much distance a bus will cover in 9 second?
(5) Find the distance covered by a scooty in 22 hours if it covers a distance of 50 km in 12 hours.
(6) By running at a speed of 14 km/h how much distance a scooty will cover in 7 second?
(7) At a certain speed a cyclist covers a distance of 52 km in 3 hours. How much distance will it cover in 4 hour?
(8) At a certain speed a scooty covers a distance of 34 km in 4 hours. How much distance will it cover in 5 hour?
(9) By running at a speed of 15 km/h how much distance a bus will cover in 9 second?
(10) By running at a speed of 27 km/h how much distance a cyclist will cover in 6 second?