International Maths Olympiad Forum By SOF Olympiad Trainer

Debdeep Dutta from New Horizon Scholars School Thane, Thane West

Subject :IMO Class : Class 7

Suhana's marks for the four terms 1^st, 2^nd,3^rd and 4^th was 70%. The marks for each term is out of 50. Study the given bar graph carefully to determine what was her percentage for the first term.

AEqual to or more than 70%
BEqual to or less than 20%
CBetween 20% and 30%
DBetween 50% and 70%

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Ans 1:

VANSH CHETANKUMAR PATELI from JAVIYA SCHOOLING SYSTEM, JUNAGADH

Class : Class 8

the ans will be option D

Ans 2:

VANSH CHETANKUMAR PATELI from JAVIYA SCHOOLING SYSTEM, JUNAGADH

Class : Class 8

the ans will be option D

Ans 3:

SIDDHI SHREYASH from Phoenix Green International School , Hyderabad

Class : Class 8

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Debdeep Dutta from New Horizon Scholars School Thane, Thane West

Subject :IMO Class : Class 7

A farmer bought a buffalo for ₹ 44000 and a cow for ₹ 18000. He sold the buffalo at a loss of 5% but made a profit of 10% on the cow. The net result of the transaction is

ALoss of ₹ 200
BProfit of ₹ 400
CLoss of ₹ 400
DProfit of ₹ 200

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Debdeep Dutta from New Horizon Scholars School Thane, Thane West

Subject :IMO Class : Class 7

Priti earns a 5% commission for each mobile phone she sells. In first week she sold 120 mobile phones of value ₹ 12000 each, in second week she sold 70 mobile phones of value ₹ 30000 each and in third week she was able to sold 90 mobile phones of value ₹ 10000 each. How much commission she earned in these three weeks?

A₹ 222000
B₹ 253000
C₹ 140000
D₹ 135000

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Ans 1:

EKLAVYA GONDULE from DPS BHILAI, Bhilai

Class : Class 7

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shaoni Mukherjee from Delhi Public School Gurgaon, gurgaon

Subject :IMO Class : Class 6

The method of finding solution by trying out various values for the variable is called

A Error method
B Trial and error method
C Testing method
D Checking method

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Ans 1:

P A Reyyansh from Ann Mary School, Dehradun

Class : Class 10

Ans 2:

Ayaan from HFSI POWAI, MUMBAI

Class : Class 6

Ans 3:

Hridhay Kanodia from WelhamBoysSchool, Bathinda

Class : Class 7

Ans 4:

SOUVAGYA SAHA from De Nobili School, DHANBAD

Class : Class 10

Ans 5:

Swastik Sharma from Modern Vidya Niketan 17, Faridabad, Faridabad

Class : Class 8

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Bhavna Kumari from Kendrya Vidyalaya No 2 Salt Lake, Kolkata

Subject :IMO Class : Class 5

One third of the members of a badminton club are girls. Which of the following bar graphs is the correct representation of the members of the club?

A
B
C
D

ANS IS D

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Ans 1:

Bhavna Kumari from Kendrya Vidyalaya No 2 Salt Lake, Kolkata

Class : Class 5

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Kushagra Kishore from Chrysalis High, Bengaluru

Subject :IMO Class : Class 6

Ayush had a square cardboard. The cardboard was cut into 8 equal triangles. Find the area of each triangle.

A10 cm²
B400 cm²
C80 cm²
D800 cm²

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Ans 1:

Sumit kumar from The Divine Public School, Bikramganj

Class : Class 6

D

Ans 2:

Prithwanko Ghosh from Kendriya Vidyalaya IIT Kanpur, Kanpur

Class : Class 7

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Abhivir Samraj from Vaels International, CHENNAI

Subject :IMO Class : Class 4

How many lines of symmetry does the following figure have?

A 1
B 2
C 3
D 0

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Manan Bagrecha from Lamartiniere for boys, Kolkata

Subject :IMO Class : Class 3

Which of the following options show the mirror image of Fig. (X), if the mirror is placed along MN?

A
B
C
D

It is C

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Ans 1:

Saanvi Sharma from Harvest International , Bangalore

Class : Class 5

Ans 2:

Karthik from TMS, Dubai

Class : Class 3

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Ashmit Kheterpal from lvis, Gurgaon

Subject :IMO Class : Class 7

How many times should a wheel of diameter 7 m rotate to go around the perimeter of a rectangular field of length 70 m and breadth 40 m?

A5
B10
C12
D8

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Debdeep Dutta from New Horizon Scholars School Thane, Thane West

Subject :IMO Class : Class 7

Five circles of different radii are made on the diameter of the big circle. If the circumference of the big circle is 110 cm, then find the sum of the circumference of 5 small circles.

A35 cm
B110 cm
C45 cm
D60 cm

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Ans 1:

Bhava Sphuran from N.St .Mathew's Public School, Vijayawada

Class : Class 9

THE LEGEND ROCKING STAR BHAVAS THE GREAT

Ans 2:

Devanshi Mahajan from Mt Saint Mary, Delhi

Class : Class 3

ans is 550 cm

Ans 3:

divya sree from The hyderabad public school , Hyderabad

Class : Class 7

please say the solution

Ans 4:

Devanshi Mahajan from Mt Saint Mary, Delhi

Class : Class 3

sorry ans is 110 cm... it is correct

Ans 5:

Aarushi10 Kataria from Modern High School for Girls, kolkata

Class : Class 8

Answer is 110 cm since 2 pi( r1 ... ... r5) = 2 pi r(original) = 110 cm

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