International Maths Olympiad Forum By SOF Olympiad Trainer - Page 519
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Saransh Agrawal from Meridian School, Hyderabad
Subject :IMO    Class : Class 5

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ARIJIT SINGH from SAT PAUL MITTAL SCHOOL , Ludhiana
Subject :IMO    Class : Class 5

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Aarush Pandya from Inventure Academy, Bangalore
Subject :IMO    Class : Class 4

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Kartik Chauhan from Euro school , Pune
Subject :IMO    Class : Class 6

Study the given statements carefully and select the correct option.
Statement-I : If the side of a square is halved, then the new perimeter is two times the original perimeter.
Statement-II : If the perimeter of a regular pentagon is 35 cm, then the length of its each side is 5 cm.

ABoth Statement-I and Statement-II are true.
BBoth Statement-I and Statement-II are false.
CStatement-I is true but Statement-II is false.
DStatement-I is false but Statement-II is true.


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Aditi from Salt Lake School, Kolkata
Subject :IMO    Class : Class 9

Ans 1:

Doyel Bhattacharjee from Air Force School Hebbal, Bangalore
Class : Class 9
A is the correct answer

Ans 2:

ANUSHKA SAHA from ST. JOSEPH'S CONVENT, CHANDANNAGAR
Class : Class 9

Ans 3:

Golu Sharma from KV SECL NOWROZABAD, Nowrozabad
Class : Class 4
A

Ans 4:

Aarush Gupta from Delhi public school, Faridabad
Class : Class 9
A As when you will put mirror you will get back this image

Ans 5:

CHIRAG from JINDAL VIDYA MANDIR, RATNAGIRI
Class : Class 10
A is the correct answer

Ans 6:

Shreyam Tripathy from Ann Mary School, Dehradun
Class : Class 10
even in the solution the figure shown if of A option

Ans 7:

Aadarsh Mutyala from The Heartfulness Learning Centre, Hyderabad
Class : Class 9
yep, exactly!

Ans 8:

Neil Pathak from GD Goenka Public School, Paschiim Vihar, New Delhi
Class : Class 9
A is the correct answer

Ans 9:

T suresh from Visakha valley school, Vishakhapatnam
Class : Class 9
A is the correct mirror image, after checking with a mirror

Ans 10:

from d.g.v. sr. sec. school, rohtak
Class : Class 9
a is the correct answer

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Aditi from Salt Lake School, Kolkata
Subject :IMO    Class : Class 9

A number arrangement machine when given an input of numbers, rearranges them following a particular rule in each step. The following is an illustration of input and steps of rearrangement.
Input: 25 280 345 36 93 147 550
Step-I: 550 280 345 36 93 147 25
Step-II: 550 345 280 36 93 147 25
Step-III: 550 345 280 147 93 36 25
Step III is the last step for this input.
What will be the third step for the following input?
Input: 113 18 48 225 462 175 288

A 462 288 48 225 113 175 18
B 462 288 225 175 113 48 18
C 462 225 288 48 113 175 18
D 462 288 225 48 113 175 18


Can anyone explain the logic please?

Ans 1:

Anusha from , faridabad
Class : Class 9
If you see step 3 carefully then it rearranges the input in DESCENDING ORDER and the if you do it with input 2 then you will find B as the answer not D!!

Ans 2:

ANUSHKA SAHA from ST. JOSEPH'S CONVENT, CHANDANNAGAR
Class : Class 9

Ans 3:

Aarush Gupta from Delhi public school, Faridabad
Class : Class 9
Observe the first one carefully you will find that they are arranged in ascending order in each step so you will do same in this and your answer will be C option

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ishit from EUROSCHOOL THANE, THANE WEST
Subject :IMO    Class : Class 4

Ans 1:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 8
The answer is A part. As P=1, Q=6, R=1, and S=4

Ans 2:

Ramkrishna kaushik from guyfuyf, kjbkj
Class : Class 5

Ans 3:

Aarush Pandya from Inventure Academy, Bangalore
Class : Class 8
The answer is A. S is 4, and there is only one option that has S marked as 4.

Ans 4:

Animesh Mishra from DPS NORTH BANGALORE, BENGALURU
Class : Class 3

Ans 5:

Aahana Agarwal from NPS Koramangala, Bengaluru
Class : Class 6

Ans 6:

Swarnava Dutta from Delhi Public School, Dadri
Class : Class 4
Answer is A......you questioned and you don't know the answer...you fool.

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Aditi from Salt Lake School, Kolkata
Subject :IMO    Class : Class 9

Ans 1:

Pratham Chaurasiya from Kendriya Vidyalaya Sarni, Pathakhera
Class : Class 9
B is correct option.

Ans 2:

Aarush Gupta from Delhi public school, Faridabad
Class : Class 9
B option as

Ans 3:

T suresh from Visakha valley school, Vishakhapatnam
Class : Class 9
Option B is correct

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jj from DELHI PUBLIC SCHOOL, HYDERABAD
Subject :IMO    Class : Class 1

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jj from DELHI PUBLIC SCHOOL, HYDERABAD
Subject :IMO    Class : Class 1

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