International Maths Olympiad Forum By SOF Olympiad Trainer

Amritansh Anand from dpsjamnagar, jamnagar

Subject :IMO Class : Class 7

Mean of 9 observations was found to be 35. Later on, it was detected that an observation 81 was misread as 18, then the correct mean of the observations is ______.

A 40
B 41
C 42
D 43

Ans 1:

Vatsala Saraswat from Modern school , Noida

Class : Class 7

Ans 2:

Mathukumalli Venkata Naga Sai Asritha from HINDUSTAN INTERNATIONAL SCHOOL, CHENNAI

Class : Class 3

Ans 3:

LAKSHYA PAMECHA from DELHI PUBLIC SCHOOL, Udaipur

Class : Class 7

Ans 4:

Rithvik from BVM Global, Chennai

Class : Class 9

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Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon

Subject :IMO Class : Class 8

Arrange the steps (i) to (iv) in correct order, while constructing a parallelogram ABCD, given = 6cm, = 4cm, and diagonal
Step 1 :Draw
Step (i) :Join and
Step (ii) :With A as centre, draw an arc of radius 4 cm.
Step (iii) :With B and D as centres and with 4 cm and 6 cm as radii, respectively, draw arcs to cut each other at C.
Step (iv) :With B as centre, draw an arc of radius 3 cm to cut the arc drawn in step (ii) at point D.
Step 6 :Join ABCD is the required parallelogram.

A (ii), (iv), (iii), (i)
B (iii), (ii), (v), (iv)
C (ii), (iv), (i), (iii)
D None of these

Step 4 is wrong

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Ans 1:

Student from School, City

Class : Class 8

Ans 2:

arnav raj sharma from gulibulium school, new york

Class : Class 8

Ans 3:

Student from School, City

Class : Class 8

It can be both A and C as it does not matter whether you join AD and BD first or you locate point C first.

Ans 4:

Student from School, City

Class : Class 8

Also, the length of BD is not specified.

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Pranav Raj from B.V.M. Global, Chennai

Subject :IMO Class : Class 6

If the area of the rectangle is 16 m², then which of the following may not be the possible dimensions for rectangle?

A Length = 8 m, breadth = 2 m
B Length = 16 m, breadth = 1 m
C Length = 32 m, breadth = 1/2 m
D Length = 8.5 m, breadth = 2 m

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Vedant Malhotra from Delhi Public school, Bangalore

Subject :IMO Class : Class 7

The given Fig. (X) is turned to a different position. Which of these CANNOT be the figure after it is turned?

A
B
C
D

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Videh Jain from Bluebells School International, Delhi

Subject :IMO Class : Class 6

How many right angles are formed when hour hand of a clock moves from
(A) 2 to 8 (B) 6 to 9

	(A)	(B)
A	1	1
B	1	2
C	2	2
D	2	1

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Ans 1:

Videh Jain from Bluebells School International, Delhi

Class : Class 6

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Student from School, City

Subject :IMO Class : Class 4

The given table shows the number of pages read by Soham and Sakshi in 4 months.
Who reads less number of pages in the months of January,
March and April altogether and by how much?

ASoham, 119
BSakshi, 314
CSoham, 314
DSakshi, 119

I canât understand the second question in this

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Ans 1:

Adwika Parimal from The Heritage School, Kolkata

Class : Class 4

UU

Ans 2:

Ayush Ku Pal from Delhi Public School, Nalconagar Angul

Class : Class 8

jan - 89 less pages mar- 170 less pagesapril- 140 more pagesSo, 89 170-140=119 So, the correct answer is D 119

Ans 3:

Shreyan Mandal from MVN Aravalli, Faridabad

Class : Class 4

d is the correct answer

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venkat from narayan school, chenai

Subject :IMO Class : Class 7

A farmer has 192 animals, out of which are cattle. of cattles are dairy cows. How many dairy cows he has?

A 128
B 84
C 56
D 112

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Ans 1:

Vaishnavi from DPS , Singapore

Class : Class 3

Yes option C is the right answer

Ans 2:

Atulya Shukla from ,

Class : Class 7

Ans 3:

Mayank Singla from lfc, Sangrur

Class : Class 7

Ans 4:

Atulya Shukla from ,

Class : Class 7

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VISHISHT S PILLAI from Bethany High School, Bangalore

Subject :IMO Class : Class 4

The given pictograph tells us about the kind of books Mohan has read. Study the pictograph carefully and answer the following questions.

How many books did Mohan read in all?

A 75
B 80
C 72
D 78