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Shomili from Global Indian International School, Singapore
Subject :NSO    Class : Class 8

A body goes from point X to point Y with a speed of 10 m s-1. It comes back to X with a speed of 20 m s-1. The average speed of the body during the journey is ______.

A15 m s-1
B16.6 m s-1
C13.3 m s-1
D30 m s-1


Hi, I am a bit confused about this question... How could the answer possibly be 'C'? The answer is most obviously A... Please comment.

Ans 1:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 9
the answer on brainly is correct. cannot paste here- but a hint- better to use formula then logic sometimes

Ans 2:

Sahasra Shanker from KV IIT, Chennai
Class : Class 6
Why?

Ans 3:

The Address from Somaiya, Mumbai
Class : Class 6

Ans 4:

Aditya Saha from The Lexicon International School Kalyaninagar Pune, Pune
Class : Class 10
it is a bing says so

Ans 5:

Bipasana from KV IIT Kanpur, Kanpur
Class : Class 9
It's supposed to be A, right?

Ans 6:

meghna from Asan Memorial Senior secondary school, Chennai
Class : Class 4

Ans 7:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
shoulda be option A average of 10 and 20 is 15, NOT 13.3

Ans 8:

SRIJA SRINIVASAN PAKU from KENDRIYA VIDHYALAYA ASHOK NAGAR, Chennai
Class : Class 8
why isnt it a?

Ans 9:

Paarth Vashistha from Kunskapsskolan Gurgaon , Gurgaon
Class : Class 8
total distance / total time = average speed

Ans 10:

Vihaan Khurana from SPS Saket Nagar Bhopal, Bhopal
Class : Class 8
it is a

Ans 11:

Gaurik dutt sharma from Jankidevi Public school, Dausa
Class : Class 4
I thought it was a

Ans 12:

Kashish Kathuria from Delhi Public School, Bangalore
Class : Class 9
It should be A

Ans 13:

Newaan Bhardwaj from ahlcon international school, Delhi
Class : Class 7
it is a

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