National Science Olympiad Forum By SOF Olympiad Trainer - Page 667
  1. Home
  2. /  Forum

User Forum

Ask Your Question
SRINJAYI CHOWDHURY from Ashok Hall Girls Higher Secondary School, Kolkata
Subject :NSO    Class : Class 8

Ans 1:

SRINJAYI CHOWDHURY from Ashok Hall Girls Higher Secondary School, Kolkata
Class : Class 10
Kindly give me the reasoning of the pattern.

Ans 2:

Anushka Singh from Uttam Girls School, Ghaziabad
Class : Class 9
The answer is Option C that is 255 The difference from 3 to 7 is 4. The different from 7 to 15 is 8. The difference from 15 to 31 is 16. The difference from 31 to 63 is 32. The observation if 4 X 2 = 8, 8 X 2 = 16. Like wise, we can find next ones also. Only 5 are given and we have to find the 7th one. So, let is first find the 6th one. 32 X 2 = 64. So, 63 + 64 = 127. The 6th number is 127. Now, we have to find the 7th one. 64 X 2 = 128. 127 + 128 = 255. That is Option C

Post Your Answer

Soham Gupta from JSSIS Dubai, Dubai
Subject :NSO    Class : Class 4

Ans 1:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
And the sixth triangle by mixing two bottom left side triangles.

Ans 2:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
Sorry.Answer will be C because I can find the triangles on the top right side of the boat,second on the top left side of the boat,third and fourth triangles under the top left side triangle and fifth triangle under the bottom left side triangle.

Ans 3:

Shagun from MAXFORT DWARKA, New Delhi
Class : Class 5
c - 6

Ans 4:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
And the sixth triangle by mixing two bottom left side triangles.

Ans 5:

Arshya from KV Meenambakkam, Chennai
Class : Class 7

Ans 6:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
And the sixth triangle by mixing two bottom left side triangles.

Ans 7:

Jordan Cole from NCS Arakkonam, Arakkonam
Class : Class 3
answer is 6

Ans 8:

Raunak mache from Kendriya vidyalay, Pune
Class : Class 4
B

Ans 9:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
D

Post Your Answer

Soham Gupta from JSSIS Dubai, Dubai
Subject :NSO    Class : Class 4

Ans 1:

Shagun from MAXFORT DWARKA, New Delhi
Class : Class 5
c- cinema

Ans 2:

Kanjani Ghonge from Ira Global School, Dombivli
Class : Class 8
But how????????

Ans 3:

Kanjani Ghonge from Ira Global School, Dombivli
Class : Class 8
Answer is C how??????

Post Your Answer

muskan kapoor from muskan kapoor, Amritsar
Subject :NSO    Class : Class 2

Ans 1:

Yeasvith Vema from TMS, Gurgaon
Class : Class 6
D

Ans 2:

Vishnu Vardhan Myneni from St. John's Public School, Chennai Tamil Nadu
Class : Class 6
The answer is opshen d

Ans 3:

Mukundan Sreekanth from VIBGYOR HIGH YERWADA, PUNE
Class : Class 3

Ans 4:

muskan kapoor from muskan kapoor, Amritsar
Class : Class 8

Post Your Answer

ram from abc, xyz
Subject :NSO    Class : Class 10

Ans 1:

Vaidehi from Agragami Convent School.Wardha., wardha
Class : Class 10
No because it does not contain any ions.

Ans 2:

Savneet Singh from SA JAIN SENIOR MODEL SCHOOL, AMBALA CITY
Class : Class 10
NO.for being a conductor any acid is need to be dissolved in it.

Ans 3:

ram from abc, xyz
Class : Class 10
test_i don't know

Post Your Answer

Amruta Nasikkar from bgs nps, bangalore
Subject :NSO    Class : Class 5

Ans 1:

KRITHYA GUPTA from LOTUS VALLEY INTERNATIONAL SCHOOL, NOIDA
Class : Class 7
the correct answer should be b because the sun is not a planet.

Ans 2:

Vihaan Patil from Bombay Scottish School, Mahim Mumbai
Class : Class 6
number one sun is A STAR BOT A PLANET number two SUN IS 147.26 MILLION KM AWAY FROM EARTH NOT 150,000,000

Ans 3:

Mahi Pimparkar from Vibgyor High, Pune
Class : Class 5
So sorry, i didnt read the question correctly

Ans 4:

Akshaj Malhotra from Salwan Public School, Gurugram
Class : Class 7
yaa and solution is also wrong it says all are correct

Ans 5:

KRITHYA GUPTA from LOTUS VALLEY INTERNATIONAL SCHOOL, NOIDA
Class : Class 7
sorry i did not read the question properly

Ans 6:

KRITHYA GUPTA from LOTUS VALLEY INTERNATIONAL SCHOOL, NOIDA
Class : Class 7
the correct answer should be b because the sun is not a planet.

Ans 7:

Mahi Pimparkar from Vibgyor High, Pune
Class : Class 5
I do not understand how the answer is B.. The sun is not a planet, it is a star. And there are times when you can see venus in the sky, it is the only planet which can be spotted in the sky during the day (Rarely spotted).

Ans 8:

Devasree from Presidium, Ghaziabad
Class : Class 10
B

Ans 9:

Akshaj Malhotra from Salwan Public School, Gurugram
Class : Class 7
sol is A. The Sun is a huge mass of very hot gases. --- Correct.B. The Sun is the only planet that we can see in the day. --- Correct.The Sun’s light is so bright, that all other plants are not visible.C. The distance of the Sun from the Earth is about 150,000,000 km. --- Correct. Sun is 150 million km away from us.D. The Sun is important to the Earth because it provides light energy to green plants to make food. --- Correct. If there is no sunlight, plants cannot make food, they will die. There will be nothing to eat for animals and us.So, Option B is the right answer.

Post Your Answer

ranjani from sancta maria, Hyderabad
Subject :NSO    Class : Class 7

Ans 1:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 7
ameya athawale from woodridge high school,aurangabadclass:7thX and Y aren't there in the question then what to answer

Ans 2:

Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi
Class : Class 7
This question has an error in it. I too found that there was no X and Y in this.

Ans 3:

Chaitanya L K from SKCHEC, bangalore
Class : Class 8
exactly...there is neither X or Y !! what is wrong with this question...

Ans 4:

Mradul from Modern public school bhiwadi, Bhiwadi
Class : Class 7
All are from our NSO level1 workbookAnd they have not mentioned X and Y

Ans 5:

Bhavtosh Tripathi from Maneckji Cooper Education Trust School, Mumbai
Class : Class 9
there is no X

Ans 6:

dhairya mittal from vidyashram international school jodhpur, Jodhpur
Class : Class 5

Ans 7:

Palash sachin patel from Kips, Patan
Class : Class 8
question is itself wrong

Ans 8:

Pisal Dhruv from Veer Bhagat Singh International School, Mumbai
Class : Class 7
there are no x and y mentioned

Ans 9:

santosh katiyar from narayana vidhyalayam, Nagpur
Class : Class 7
yes same here

Ans 10:

Anshuman D from MVM, Hyderabad
Class : Class 9
I too found it wrong.There is neither X nor Y

Ans 11:

dhairya mittal from vidyashram international school jodhpur, Jodhpur
Class : Class 5
You all are correct

Ans 12:

Arnav Ranka from Gyan Bharati School, Saket, New Delhi
Class : Class 9
Also, if we try to report an error, they say that it is not a valid error. Please tell them to fix this immediately.

Ans 13:

ANAND K S from KENDRIYA VIDYALAYA NO.2, KOCHI, ERNAKULAM
Class : Class 7

Ans 14:

Samitha Kumar from Boaz Public School , Chennai
Class : Class 10

Ans 15:

ARNAV BARANWAL from KPS SCHOOL, bhilai
Class : Class 4
What is this X and Y. Question is totally wrong

Ans 16:

Saanvi S Ammanagi from KLE Society School, Rajajinagar, Bengaluru
Class : Class 7
Backlinks will boost your site! All information is on our page: https://sites.google.com/view/backlinks-seo-sell. Our Telegram channel with services https://t.me/backlinksforgoogle1 FREE 1 ORDER 10,000 BACK LINKS Telegram channel for communication: https://t.me/Backlinks_24

Ans 17:

SANVI from D PS VADODARA, Vadodara
Class : Class 9
if you don't mind please check what question you are setting and please correct it if it is wrong

Ans 18:

Rajesh Lamba from MVN School Faridabad, Faridabad
Class : Class 5
Absolutely wrong

Ans 19:

arijit paul from New Town School, Kolkata
Class : Class 9
same case here like harshita A ranjani u should give the correct question

Ans 20:

Aarnavi Mann from Scholars rosary Sr. Sec. School, Rohtak
Class : Class 8
Balancing equipment, high quality and low price, anyone can buy, even to provide paid services to balance any parts https://vibromera.eu/shop/854/ Equipos de equilibrado, de alta calidad y bajo precio, cualquiera puede comprarlos, incluso prestar servicios de pago para equilibrar cualquier pieza https://vibromera.eu/shop/854/

Ans 21:

Ashwin Shridhar from Vidyashilp Academy, Bangalore
Class : Class 9
There is neither x nor y, how do you expect us to give the correct answer?

Ans 22:

Koina Rautkar from DAV ispat sr sec public school , Dalli rajhara
Class : Class 7
This is wrong question we should get full marks

Ans 23:

Ritika Bakshi from Techno India Group public School Hooghly, Chinsurah
Class : Class 7
Yes there is no x and y in this question

Ans 24:

Suchita A from PSBB Millennium, Gerugambakkam, Chennai
Class : Class 7
i don't know if this question is right or are my eyes playing tricks on me but i don't seem to see an X or a Y in here.

Post Your Answer

computer shop from REAL COMPUSYSTEM, AHMEDABAD
Subject :NSO    Class : Class 1

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The black air causes air pollution and it makes the air dirty. Hence, the correct answer is B.

Post Your Answer

SAANVI.SHUKLA from DELHI PUBLIC SCHOOL, NOIDA
Subject :NSO    Class : Class 2

Ans 1:

Yeasvith Vema from TMS, Gurgaon
Class : Class 6
A

Ans 2:

SAANVI.SHUKLA from DELHI PUBLIC SCHOOL, NOIDA
Class : Class 2

Post Your Answer

Agnimitra Gupta from south point school, Kolkata
Subject :NSO    Class : Class 4

Post Your Answer