International Maths Olympiad Forum By SOF Olympiad Trainer - Page 254
  1. Home
  2. /  Forum

User Forum

Ask Your Question
monica jindal from British Co Ed high school, Patiala
Subject :IMO    Class : Class 3

Post Your Answer

Lakshyraj yadav from The shri ram aravali school , Gurgaon
Subject :IMO    Class : Class 5

Post Your Answer

Devesh Kumar Shrivastava from Ramjas School, Pusa Road, New Delhi
Subject :IMO    Class : Class 5

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(A):  The factors of 1,2,4,5,8,10,16,20,40,80 

Therefore, 80 has 10 factors. 


Post Your Answer

Aryan Keswani from Delhi Public School, Mathura Road, New Delhi
Subject :IMO    Class : Class 6

Ans 1:

Prapti Kumar from GD Birla Center For Education, Kolkata
Class : Class 8

Ans 2:

Prachi from Holy Child Public school, Faridabad
Class : Class 8

Ans 3:

Ojaswi from SAINT JOHNS CONVENT SCHOOL LANSDOWNE, DELHI
Class : Class 4

Ans 4: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(A): Number of shirts bought by Ashima = x
∴ Number of jeans bought by her = x + 5
∴ Number of watches bought by her
= (x + 5) – 2 = x + 3
∴ Total number of things bought by her
= x + (x + 5) + (x + 3) = 23


Post Your Answer

Kunsh Makani from NES, Mumbai
Subject :IMO    Class : Class 1

Ans 1:

Anu from Delhi Public School Whitefield, Bangalore
Class : Class 2

Ans 2:

Samarth Shenoy from Jindal Vidya Mandir , Bellary
Class : Class 4

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(D):

There is no object which can roll but not slide.


Ans 4:

Saiansh Biswas from Little Flower School, Jamshedpur
Class : Class 2
A cylinder can roll....who can answer is zero

Post Your Answer

Arihant kumar from Delhi public school,EOK, New Delhi
Subject :IMO    Class : Class 6

Fill in the blanks:
(i) Data means information in the form of _P __.
(ii) Data obtained in the _Q __form is called row data.
(iii) The number of times a particular observation occurs is called its _R __.
(iv) Arranging the numeral figures in an ascending or descending order is called an/a _S __.

P Q R S
A Numerical figure Frequency Original Array
B Numerical figure Original Frequency Array
C Array Frequency Original Numerical figure
D Frequency Array Original Numerical figure


Ans 1:

mystic bro7pro from arbor school, Hyderabad
Class : Class 5
a

Ans 2:

Utkarsh Priyam from DSE, hyderabad
Class : Class 6
The use of word 'row' in place of 'raw' is confusing. Data in original form is called 'raw' data.

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is option B. 


Ans 4:

SOUVAGYA SAHA from De Nobili School, DHANBAD
Class : Class 8

Post Your Answer

Devesh Kumar Shrivastava from Ramjas School, Pusa Road, New Delhi
Subject :IMO    Class : Class 5

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(A):

Triangles formed are : A, B, C, D, E, F, G,
H, I, J, K, BC, EF, BH, FJ, HI, IJ, HIJ, FJK,
BHG, DCEI, ABCDEF, XYZ
 Number of triangles formed = 23.


Ans 2:

Ojas Garg from Fr. Agnel School Noida, Noida
Class : Class 5
yes

Ans 3:

NAMAN SINGH from SETH ANANDRAM JAIPURIA SCHOOL, Ghaziabad
Class : Class 6

Ans 4:

Seerat Kaur Sowanni from Deens Academy, Bangalore
Class : Class 6
yeah, it is 23

Post Your Answer

Diti Sharma from Amity International School, Noida
Subject :IMO    Class : Class 9

In ΔDEF and ΔPQR, DE = DF, ∠F = ∠P and ∠E = ∠Q. The two triangles are

A Isosceles but not necessarily congruent
B Isosceles and congruent
C Congruent but not isosceles
D Neither congruent nor isosceles


The answer should be (B). It is because if angleE = angleQ and angleF = angleP, then angleD = angleR so the triangles are similar. Also, we can see that angleE = angleQ and angleF = angleP, so DE = QR and DF = PR, but DE=DF, so QR=PR and hence both triangles are both congruent and isosceles.

Post Your Answer

Vineet Agarwal from DPS, Gurgaon
Subject :IMO    Class : Class 7

Ans 1:

from , NOIDA
Class : Class 6

Ans 2:

Taanvi from -, Bangalore
Class : Class 9

Ans 3:

Ritvik Choudhary from Ritvik Choudhary, Ghaziabad
Class : Class 6
WRONG DIGITS MENTION

Post Your Answer

Advika Narkar from VIBGYOR High Airoli, Navi Mumbai
Subject :IMO    Class : Class 4

Post Your Answer