International Maths Olympiad Forum By SOF Olympiad Trainer

Advay Jain from DPS Noida, Noida

Subject :IMO Class : Class 5

What is the missing sign in the box?

A>
B<
C=
Dcan't be determined

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ranjani from sancta maria, Hyderabad

Subject :IMO Class : Class 8

Which of the following statements is INCORRECT?

AIf a and b are consecutive rational numbers where

B is a rational number which lies between x and y.
CRational numbers are associative under subtraction.
DThe rational numbers are lying on the opposite sides of '0' on the number line.

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Ans 1:

rishu Raj from dav public school dhanupura ara , ara

Class : Class 8

answer c

Ans 2:

Arnab Jana from KTPP High School, KTPP

Class : Class 9

c

Ans 3:

Ansh Goel from DAV public school, Delhi

Class : Class 9

Answer is option c because rational no.s are associative under additional and multiplication only

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samik from Sri Sri Ravishankar Vidya Mndir, Mumbai

Subject :IMO Class : Class 7

Study the statements carefully.
(1) Every integer is a rational number and every fraction is a rational number.
(2) A rational number is positive, if p and q are either both positive or both negative.
(3) A rational number is negative, if one of p and q is positive and other is negative.
(4) If there are two rational numbers with common denominator, then the one with the larger numerator is larger than the other.Which of the following options hold?

ABoth (1) and (4) are incorrect
BBoth (2) and (3) are incorrect
COnly (1) is incorrect
DAll are correct

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student from school, city

Subject :IMO Class : Class 6

The number of obtuse angles in the given figure is ________.

A2
B5
C4
D6

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Ans 1:

Prabhav Kaushik from DPS Noida, Noida

Class : Class 10

Ans 2:

Siddhanth Subramanian from Global Indian International School , Singapore

Class : Class 7

Ans 3:

Subharsish Kashyap from Carmel school, Jorhat

Class : Class 8

option b is correct because there are 5 obtuse angles : ROS, QOS, POS, ROT, QOT

Ans 4:

Ishayu Poddar from NPS Whitefield, Bangalore

Class : Class 8

there are 5

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Pagadala Sri Pranya from Bharatiya Vidya Bhavans Public School Vidyashram, HYDERABAD

Subject :IMO Class : Class 5

In the given figure, DE = HI = AL = 2 cm and LK = IJ = HG = EF = 5 cm. Find the perimeter of the given figure (in cm).

A 52
B 34
C 54
D 70

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Ans 1:

Pagadala Sri Pranya from Bharatiya Vidya Bhavans Public School Vidyashram, HYDERABAD

Class : Class 5

AL=2,KJ=2,IH=2,GF=2,ED=2.SO,2 2 2 2 2=10.BC=10so10 10=20breadth=7x2=14so20 14=34how can option C be correct

Ans 2:

S Tharuni from Sanskriti, Hyderabad

Class : Class 7

the correct answer is (c)

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Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore

Subject :IMO Class : Class 3

Find the odd one out.

A
B
C
D

SolutionExcept (B) all the three are spherical balls.

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Ans 1:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore

Class : Class 9

SolutionExcept (B) all the three are spherical balls.

Ans 2:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore

Class : Class 9

Ans 3:

Abhijay Saha from Delhi Public School, Megacity, Kolkata

Class : Class 3

Ans 4:

Tavish Singh from Sanskriti School, Hyderabad

Class : Class 4

ball

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Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore

Subject :IMO Class : Class 3

Four friends were standing in a line. Lalit stood the first. Rohan is not second and Ishaan is not third. Piyush stood immidiatly before Rohan but immidiatly after Lalit. Who stood at the fourth?

ALalit
BIshaan
CPiyush
DRohan

SolutionLalit(First), Piyush, Rohan, Ishaan, Ishaan stood fourth.

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Ans 1:

Nihira Tiwari from Delhi public school electronic city, Bengaluru

Class : Class 6

Focus on numbers

Ans 2:

Shivani Sharma from Holy Angels ISC school , Thiruvananthapuram

Class : Class 7

Lalita is first then how can Piyush stood after Lalita

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Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore

Subject :IMO Class : Class 3

If 'Madras' is called 'Delhi', 'Delhi' is called 'Bihar', 'Bihar' is called 'Mumbai', then in which city Qutub Minar situated?

AMadras
BBihar
CMumbai
DDelhi

SolutionQutub Minar is in DelhiDelhi is called Bihar

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Ans 1:

Aamir from Dps, Uae

Class : Class 3

Good

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SOUVAGYA SAHA from De Nobili School, DHANBAD

Subject :IMO Class : Class 4

Which of the following statement is CORRECT?

AThere are seven basic symbols of the Roman numerals.
BA symbol of greater value is written to the right of a symbol of smaller value, the smaller value is added to the larger value.
CA symbol of smaller value is written to the right of a symbol of greater value, the smaller value is subtracted from the larger value.
DV is never written on the right of X.

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Ans 1:

Medha Bijjaram from Prime Academy, Mumbai

Class : Class 9

A

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ranjani from sancta maria, Hyderabad

Subject :IMO Class : Class 8

In the figure below, ABCD is a rhombus. Find x.

A39°
B40°
C49°
D29°

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Ans 1:

Parshv from Teoler High school , Jaipur

Class : Class 8

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