National Science Olympiad Forum By SOF Olympiad Trainer
  1. Home
  2. Forum

User Forum

Ask Your Question
NITIN RAJ from xyz, kutch
Subject :NSO    Class : Class 9

Post Your Answer

AMEYA CHANDRASHEKHAR JOSHI from SRI VANI VIDYA SHALA HIGH SCHOOL , KALYAN
Subject :NSO    Class : Class 9

The following numbers are coded as follows:

While coding the given number following conditions are also to be observed.
Conditions :
(i) If the first digit of the number is odd, then it will be coded as @.
(ii) If the last digit of the number is even, then it will be coded as ©.
Find the code of 5 2 4 6 5 7 3 8.

A$* ÷ $+?!
B@* ÷ + $?©
C@* ÷ $+?©
D@ * ÷ +$?!


The symbol given for C option is (.) and in the options this symbol is not there

Ans 1:

Himanshu from delhi public school, Mahendragarh
Class : Class 9
Ans is C

Ans 2:

Kartik Agarwal from DPSG, Ghaziabad
Class : Class 9
Option C is Correct Answer

Post Your Answer

Shriyann from Lodha World School, Thane
Subject :NSO    Class : Class 6

Post Your Answer

Alay Shah from Euro School, Thane
Subject :NSO    Class : Class 5

Post Your Answer

Shreyas Singh from Indian School I, Oman
Subject :NSO    Class : Class 5

Ans 1:

AREEN from BOLTON, HYDERABAD
Class : Class 5
Ans is B because when we wear thin , light-coloured and loose clothes in summer, the sunrays will be absorbed and then sweat will come and then sweat will dry and you will feel cool.

Ans 2:

AREEN from BOLTON, HYDERABAD
Class : Class 5
Ans is B because when we wear thin clothes in summer, the sunrays will be absorbed and then sweat will come and then sweat will dry and you will feel cool.

Post Your Answer

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Subject :NSO    Class : Class 5

Ans 1:

Ujjwal Upadhyay from Navy Children school, Vasco
Class : Class 5
D

Ans 2:

Ujjwal Upadhyay from Navy Children school, Vasco
Class : Class 5
D

Post Your Answer

Ayush sharma from GEMS international school , Gurgaon
Subject :NSO    Class : Class 6

Post Your Answer

ANURADHA NAIR from SANDEEPANI VIDYA NIKETHAN SCHOOL, Thrissur
Subject :NSO    Class : Class 4

Ans 1:

Nishtha Shukla from Narayana E Techno, Gurgaon
Class : Class 4
A

Ans 2:

ANURADHA NAIR from SANDEEPANI VIDYA NIKETHAN SCHOOL, Thrissur
Class : Class 4
A

Post Your Answer

ANURADHA NAIR from SANDEEPANI VIDYA NIKETHAN SCHOOL, Thrissur
Subject :NSO    Class : Class 4

Ans 1:

Nishtha Shukla from Narayana E Techno, Gurgaon
Class : Class 4
A

Ans 2:

ANURADHA NAIR from SANDEEPANI VIDYA NIKETHAN SCHOOL, Thrissur
Class : Class 4
A

Post Your Answer

Anaadya from Arsha Vidya Mandir, Ch
Subject :NSO    Class : Class 4

A toy car is released from point Q of the ramp and travels towards point P. What is/are the force(s) responsible for pulling the car towards point P?

(A) Weight of the car
(B) Earth’s gravity
(C) Earth’s magnetic field
(D) Frictional force between the wheels and the ramp

A (B) only
B (A) and (B) only
C (B) and (D) only
D (A), (B), (C) and (D)


weight of the car should not be called a force. Gravity is the only force that is pulling the car here. answer should be A

Ans 1:

Nishtha Shukla from Narayana E Techno, Gurgaon
Class : Class 4
B

Ans 2:

Harsh Sobti from ABC, BLR
Class : Class 4
Sorry ,i thought d instead of c.

Ans 3:

Harsh Sobti from ABC, BLR
Class : Class 4
I thought the answer is c because every option makes the car move.

Post Your Answer