A car travels 8 km in the first quarter of an hour, 6 km in the second quarter and 16 km in the third quarter. What is the average speed of the car in km per hour over the entire journey?

Asked by Last Modified  

5 Answers

Learn GATE Coaching +1 Electronics & Communication

Follow 1
Answer

Please enter your answer

Sunil Yadav

Physics & Mathematics Expert for JEE Mains,Advanced & Olympiads with 14 yrs experience

Avg Speed=Total Distance/Total Time=> (8+6+16)/(0.25+0.25+0.25) =40 kmph.
Comments
Dislike Bookmark

Mechanical Engineer

Average Speed= Total Distance/Total time Total distance= 8+6+16=30 km Total time= 45 minutes= 0.75 hour Average speed= 40 km/hr over the entire journey of 45 minutes.
Comments
Dislike Bookmark

Trainer

d1/t1 = 8 /0.25 = 32 Km /Hr (1st quarter speed). d2/t2 = 6/0.25 = 24 Km/Hr (2nd quarter speed). d3/t3 = 16/0.25 = 64 Km/Hr (3rd quarter speed). Hence the average speed for all quarters = (32+24+64)/3 = 120 / 3 = 40 km/Hr.
Comments
Dislike Bookmark

Speed = distance/time = (8+6+16)/(1/4+1/4+1/4) = (30)/(3/4) = 40 kmph.
Comments
Dislike Bookmark

B.Tech (Mech Engg)

Speed= (8+6+16)/(3/4)= 30*4/3 = 40 km/h.
Comments
Dislike Bookmark

View 3 more Answers

Related Questions

What should not be carried to the examination center on the exam day?
You should not carry the following: mobile phone any electronic gadgets black papers log-tables clip boards electronic diary
Vishal
How to prepare the gate exam
first focus on basic concept of subjects after solve previous year questions..
Saranteja
How can I prepare for the IELTS in one month?
Best thing to prepare for IELTS in one month is to take coaching from IELTS experts. They know the tricks to get you high band score.
Tushar
0 0
5
I m B.E CS graduate confusion in to do job or study and what to study
Join any startup and work few maximum two years and then go for further study. Which will be helpful for your career.
Veena
According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction. A. True B. False
This is not principle of conservation of energy but it is principle of conservation of momentum.
Ram Niwas Choudhary

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Basics of Nucleic Acid (part 2)
Now let's move on to RNA i.e Ribonucleic Acid. RNA is also macro molecule made up with polymer of nucleotides. One of the major difference between DNA and RNA is that unlike DNA, RNA is single stranded....

Ankita Das

0 0
0
Smart Work Instead Hard Work.
Yes, " Hard work never Goes Without Reward " But, Excellency in learning outcome can be achieved by the following:- 1. Plan in advance, Plan in Detail, Keep all options open. choose the correct way...

Buds Engineering Academy Pune

2 0
0
Glimpse on Lean Manufacturing
Value Stream Mapping: Value stream mapping (VSM) is one of the lean manufacturing techniques used to identify waste, reduce process cycle times, and implement process improvement. VSM is, also known as...

Sathish Kumar

3 0
0
Vocabulary Note
CAT Vocabulary:The skills tested in Cat are things more than just English as a language. Cat is an entrance for post graduate management programmes at the premier bschools of India and the test is designed...

Shantanav Bhowmik

0 0
0
Anything could be understood, if learned in proper way, and by good coach.
Anything could be understood, if learned in proper way, and by good coach. Every body has there own way and pace of grasping things, so mentor/coach should be in sync (neither too fast nor too slow) with...

Minakshi Singh

1 0
0

Recommended Articles

GATE 2016: Eligibility criteria

GATE is an all-India entrance exam designed to test a candidate’s understanding of different undergraduate subjects in Engineering and Science. GATE score is used to select students for admission in various post-graduate education programs e.g. Master of Engineering, Master of Technology and Doctor of Philosophy, in Indian...

Read full article >

How to ace the GATE 2017?

GATE 2017 exam is just 2 months away and if you have made up your mind to score high then start your preparation right away, without losing any time. Working hard and managing time well is essential to get you through the GATE exam, and to get into a reputed institute for your post-grade engineering/architecture/technology...

Read full article >

Find GATE Coaching near you
GATE Coaching in Chennai
GATE Coaching in Mumbai
GATE Coaching in Bangalore
GATE Coaching in Delhi
GATE Coaching in Hyderabad
GATE Coaching in Pune
GATE Coaching in Kolkata
GATE Coaching in Ghaziabad

Looking for GATE Coaching ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you