International Maths Olympiad Forum By SOF Olympiad Trainer

from kv2, kalpakkam

Subject :IMO Class : Class 9

Four cows are tethered at four corners of a square plot of side 74 metres, having length of rope half of the side of square. The area left ungrazed is

A675.5 m²
B1280 m²
C1173.43 m²
D850.5 m²

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AMRIT RAJ from Don Bosco Academy , PATNA

Subject :IMO Class : Class 10

Study the following information carefully to answer the given question.
M K K I D N E T T Q O B F H A A G T U U X W L S R I
Each of these letters gets a numerical value based on its position in the above arrangement, such as, 1 for M, 2 for K, 4 for I and so on.
Value of A is exactly equal to the total value of which of the following pairs?
(i) DO (ii) QE (iii) MH

AOnly (i)
BOnly (ii)
COnly (iii)
DBoth (i) and (ii)

A's POSITION = 15 OR 16

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NYRAH GUPTA from Sat Paul Mittal School, Ludhiana

Subject :IMO Class : Class 6

A bag contains tokens numbered from 1 to 58.
a. What fraction of tokens are common multiples of 4 and 6 both?
b. What fraction of tokens are factors of 56?

A
B
C
D

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Ans 1:

Aarav Gupta from TSRS Aravali, Gurugram

Class : Class 7

ya, total no. of tokens are 58 therefore it should be 8/58 simplified to 4/29 in second part.

Ans 2:

Yahvi Sahay from D P S electronic city, Bengaluru

Class : Class 8

I don't think fraction of tokens which are factor of 56 can be 1/7. Total number of tokens is 58. So the answer would be 8/58 or 4/29.

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Faraz Khan from Rassaz International, Mumbai

Subject :IMO Class : Class 8

State ‘T’ for true and ‘F’ for false.
(i) Pentagonal prism has 5 pentagons
(ii) Euler’s formula is true for all three dimensional figures.
(iii) All cubes are prism.
(iv) A polyhedron with least number of faces is known as a triangular pyramid.

	(i)	(ii)	(iii)	(iv)
A	F	T	T	F
B	T	T	T	F
C	F	T	F	T
D	F	F	T	T

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Ans 1:

Student from School, City

Class : Class 8

Ans 2:

Anshuman D from MVM, Hyderabad

Class : Class 9

It is D Pentagonal prism has only 2 pentagon's Euler's formula is true for all polyhedrons that is all 3 dimensional figures made up of straight lines,not sphere and cylinder True true

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NYRAH GUPTA from Sat Paul Mittal School, Ludhiana

Subject :IMO Class : Class 6

Fill in the blanks:A region in the interior of a circle enclosed by an _P_ on one side and a pair of _Q_ on the other two sides is called a _R_.

A
B
C
D

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NYRAH GUPTA from Sat Paul Mittal School, Ludhiana

Subject :IMO Class : Class 6

Which of the following options most closely resembles the mirror image of the given word if mirror is placed vertically left?
S U P E R V I S O R

A
B
C
D

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Prachi from Holy Child Public school, Faridabad

Subject :IMO Class : Class 5

How many more triangles must be shaded to make AB as the line of symmetry?

A2
B3
C4
D5

1 on each side of AB. it is A

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Ans 1:

Aaradhya Sharma from Ryan, Bangalore

Class : Class 7

4

Ans 2:

BISWAJEET from St Xavier highschool Nayabazar, Cuttack

Class : Class 8

3

Ans 3:

Shriyans Chandra Padala from Silver Oaks Visakhapatnam , Visakhapatnam

Class : Class 9

Ans 4:

Arnesh Chakraborty from M P Birla Foundation Higher Secondary School, KOLKATA

Class : Class 7

it will be 4

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VIDHU from DPS NOIDA, NOIDA

Subject :IMO Class : Class 4

If the smallest 5-digit number formed by digits 8, 6, 0 and 4 (each digit must be used at least once) is divided by 12, then the quotient will be __________.

A3390
B3309
C3339
D3039

stupid question :( for me

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Ans 1:

Anu Aarna Jagadeesan from Don Bosco School of Excellence, Chennai

Class : Class 5

Ans 2:

Anu Aarna Jagadeesan from Don Bosco School of Excellence, Chennai

Class : Class 5

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Hritvi from Podar International School, Mumbai

Subject :IMO Class : Class 7

is there a method of finding the area of a circle without converting the diameter into radius?

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Ans 1:

Gauri Singh from St Johns School Marhauli, Varanasi

Class : Class 8

Well, I don't think it takes a lot of time in converting diameter into radius!!

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Mathamagician from BGSNPS, Bengaluru

Subject :IMO Class : Class 5

Garima paid a down payment of Rs. 220000 for a car. She then paid a monthly installment of Rs. 9800.50 for 72 months. Find the total amount paid for the car.

A Rs. 5,90,586
B Rs. 5,90,596
C Rs. 8,90,586
D Rs. 9,25,636

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Ans 1:

BISWAJEET from St Xavier highschool Nayabazar, Cuttack

Class : Class 8

9,25,636

Ans 2:

Mathamagician from BGSNPS, Bengaluru

Class : Class 6

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