Correct Answers: | |
Wrong Answers: | |
Unattempted: |
Question 1
A boy walks along the three edges of an equilateral triangle at average speeds of 7 km/h, 4 km/h and 5 km/h. What is the average speed along the whole journey?
$5{5/83}$ kmph.
$6{11/82}$ kmph.
$3{82/85}$ kmph.
$7{74/85}$ kmph.
Ans: a
Let the edge of the triangle be L. Total distance travelled = 3L. Time taken = $L/7 + L/4 + L/5$. So overall average speed = ${3L}/{L/7 + L/4 + L/5}$ which simplifies to ${420/83}$, which is same as: $5{5/83}$ km/h.
Question 2
A car is moving at a speed of 90 kmph. What is the speed in m/s?
Question 3
An aircraft was on a 220 km journey. Its engine developed a snag so it had to slow down. It's average speed reduced by 2km/h, as a result of which it reached its destination late by 1 hour. What was the actual duration of the journey?
Question 4
A car is moving at a speed of 35 meters per second. What is the speed in Km/h?
Question 5
A school bus covers a certain distance in 3 hours at a speed of 42 km/h. At what speed should it travel to cover the same distance in 6 hours?
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This Blog Post/Article "Distance and Time Quiz Set 010" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Updated on 2020-02-07. Published on: 2016-05-06