National Science Olympiad Forum By SOF Olympiad Trainer - Page 799
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Dhruv from na, Udaipur
Subject :NSO    Class : Class 6

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Yasmeen Shaikh from Ryan International CBSE, Mumbai
Subject :NSO    Class : Class 4

Ans 1:

Adithi Keshava from National Center For Excellence , Bangalore
Class : Class 7

Ans 2:

nitin loya from prabhat kids, Akola
Class : Class 4
easy but Brainny

Ans 3:

Tarpan Pramanik from J.N.Academy, Berhampur
Class : Class 5
1.Actually the reason behind this is 10÷2*5=25 Now here 25 s square means 25*25= 625 2. In the same way in pattern ii, 9÷3*2=6 which is the square root of 36 3. According to this logic 8÷4*2=4 which is the square root of 16. So, the correct answer is option (b) 16

Ans 4:

Himani Arora from JVM, Ballari
Class : Class 5
The logic behind answer..?

Ans 5:

Bidusmita Rath from Sri Chaitanya Techno School, Bangalore
Class : Class 5
how to formulate such a complex Q: in exam....?

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HARSHIKAA DHAR from Delhi Public School, Noida
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

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HARSHIKAA DHAR from Delhi Public School, Noida
Subject :NSO    Class : Class 4

Ans 1:

OISHIK KUNDU from Delhi Public school North kolkata, baranagar
Class : Class 4
same as me

Ans 2:

S Nithyanth from Geethanjali Vidyalaya, Bangalore
Class : Class 6

Ans 3:

ABHAY AGARWAL from ,
Class : Class 3
Ans is sixty five (B)

Ans 4:

Priyam Bhattacharya from cambridge court high school, jaipur
Class : Class 6

Ans 5:

ABHAY AGARWAL from ,
Class : Class 3
This is terrible

Ans 6:

S Nithyanth from Geethanjali Vidyalaya, Bangalore
Class : Class 6
same

Ans 7:

Jayanth from The Deens Academy, Bengaluru
Class : Class 4

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Sumeet Verlekar from ,
Subject :NSO    Class : Class 5

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Adivishnu SP from Delhi Public School Nadergul, Hyderabad
Subject :NSO    Class : Class 4

Ans 1:

RAGHAV VARSHNEY from CITY MONTESSORI SCHOOL GOMTINAGAR LUCKNOW, Lucknow
Class : Class 7

Ans 2:

BV Karthikeya from Sentia, Hyderabad
Class : Class 6

Ans 3:

TANVI D MARGHADE from PODAR INTERNATIONAL SCHOOL POWAI, MUMBAI
Class : Class 6

Ans 4:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
They haven't specified that it should be ONLY animal eater.

Ans 5:

Punyatoya from Harvest, Bengaluru
Class : Class 8
True

Ans 6:

Aahana Agarwal from NPS Koramangala, Bengaluru
Class : Class 6
They haven't said that the only animal eaters .

Ans 7:

Punyatoya from Harvest, Bengaluru
Class : Class 8

Ans 8:

Sarthak Gupta from DPS, Haryana
Class : Class 4

Ans 9:

Punyatoya from Harvest, Bengaluru
Class : Class 8
True

Ans 10:

Lakshya Singh Tomar from DPS Noida, Noida
Class : Class 4
please SOF don`t be mad

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Supratim Biswas from DPS RUBY PARK KOLKATA, kolkata
Subject :NSO    Class : Class 5

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Anhiti Mandal from Shri Ram School, Gurgaon
Subject :NSO    Class : Class 6

Ans 1:

Soham Panchal from ,
Class : Class 6
This is because the colour of the shadow is always black even if the colour of screen orthe colour of the light is different...

Ans 2:

khushi Joshi from Svkm , Mumbai
Class : Class 10
Since the colour of the shadow doesn't depend on the colour of the object, you cannot distinguish the roses from each other as the colour of the shadow (black) will remain same for all the roses.

Ans 3:

Arunangshu Karmakar from Salt Lake School (English Medium), Kolkata
Class : Class 6
All the three roses are opaque and will have the same shadow. Regardless of the colour of the rose, the colour of the shadows will always be something darker than the colour of the wall. Thus, no rose could be distinguished from the other by looking at their shadows. So D is the correct answer.

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Sree Samyukta from National Public School, Yelahankat, Bengaluru
Subject :NSO    Class : Class 6

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SOMRAJ HAZRA from Modern Delhi Public School, Faridabad
Subject :NSO    Class : Class 3

Ans 1:

Admin from Revisewise, Noida
Class : Class 3
7982 + 10 = 7992 + 10 = 8002 + 10 = 8012 + 10 = 8022 Answer will be B

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