International Maths Olympiad Forum By SOF Olympiad Trainer

kaushik_bokshi from Mahadevi Birla Shishu Vihar, Kolkata

Subject :IMO Class : Class 8

A hoop is resting vertically at staircase as shown in the diagram. AB = 12 cm and BC = 8 cm. The radius of the hoop is _____.

A 13 cm
B cm
C 14 cm
D cm

Ans 1:

Deepa Jewalkar from Meridian , Hyderabad

Class : Class 7

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Nehal from New Horizon Gurukul, Bangalore

Subject :IMO Class : Class 1

A farm has 437 rows of mango trees with 108 trees in each row. How many mango trees are there in the farm?

A 48196
B 57301
C 47196
D 52305

just multiply 437 and 108 and answer is 47196 !!

Ans 1:

Nehal from New Horizon Gurukul, Bangalore

Class : Class 6

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Nehal from New Horizon Gurukul, Bangalore

Subject :IMO Class : Class 1

For a wedding the decorators have to fix 1250 flowers in the hall. If they had already fixed 985 flowers, how many more flowers do they have to fix?

A 270
B 265
C 272
D 358

easy 265

Ans 1:

Nehal from New Horizon Gurukul, Bangalore

Class : Class 6

easy 265

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ANURAG MOHANTY from DAV Public School Burla, SAMBALPUR

Subject :IMO Class : Class 5

The line graph show the number of cars Jatin sold over the past 5 weeks.

How many more cars did he sell in the last 2 weeks than in first 3 weeks?

A 13
B 2
C 11
D 6

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

(D): Number of cars sold in first 3 weeks
= 2 + 4 + 3 = 9
Number of cars sold in last 2 weeks
= 6 + 9 = 15
∴ Jatin sold 15 – 9 = 6 more cars in the last 2 weeks than in first 3 weeks.

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Aniket Patankar from Symbiosis International School, Pune

Subject :IMO Class : Class 8

Two years ago, Mohit was three times as old as his son and two years hence, twice of his age will be equal to five times that of his son. Then the present age of Mohit is ________.

A 14 years
B 38 years
C 32 years
D 34 years

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Ans 1:

Aniket Patankar from Symbiosis International School, Pune

Class : Class 8

Ans 2:

Anshuman D from MVM, Hyderabad

Class : Class 9

Ans 3:

Amrit Biswas from INDUSVALLEY PUBLIC SCHOOL, Noida

Class : Class 10

Ans 4:

PRANAV from DOON INTERNATIONAL SCHOOL, Dehradun

Class : Class 9

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Nehal from New Horizon Gurukul, Bangalore

Subject :IMO Class : Class 1

If = 19 kg, = 94 kg and = 22 kg, then the weight of =?.

A 4 kg
B 3 kg
C 2 kg
D 5 kg

explain in easy way please

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Ans 1:

Thapasya from Indian School Al Mabela, Muscat

Class : Class 4

option A is the answer its easy

Ans 2:

Thapasya from Indian School Al Mabela, Muscat

Class : Class 4

the solution is very long but easy

Ans 3:

Nehal from New Horizon Gurukul, Bangalore

Class : Class 6

Ans 4:

Nehal from New Horizon Gurukul, Bangalore

Class : Class 6

please explain in easyway

Ans 5:

Nehal from New Horizon Gurukul, Bangalore

Class : Class 6

Ans 6:

Bhanu teja from Birla Open Minds, Hyderabad

Class : Class 7

The solution is very difficult can you please make in a easy way

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Tejaojas Abhilash from Naipunya Public School , Kochi, Kochi

Subject :IMO Class : Class 3

How many 1000's, 100's, 10's and 1's should be added to give largest four digit number?

A 9, 9, 9, 9
B 1, 0, 0, 0
C 9, 0, 9, 9
D 1, 1, 1, 1

CORRECT IS a

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Ans 1:

Tejaojas Abhilash from Naipunya Public School , Kochi, Kochi

Class : Class 9

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Anhiti Mandal from Shri Ram School, Gurgaon

Subject :IMO Class : Class 9

D and E are the mid-points of the sides AB and AC, respectively of ∆ABC. DE is produced to F. To prove that CF is equal and parallel to DA, we need an additional information which is

A∠DAE = ∠EFC
BAE = EF
CDE = EF
D∠ADE = ∠ECF

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Rohan from Indian School Sohar, Sohar

Subject :IMO Class : Class 9

In the given Venn diagram, the triangle represents female graduates, small circle represents self-employed females and the big circle represents self-employed females with bank loan facility.
Which number represents non-graduate self-employed females are with bank loan facility?

A 2
B 9
C 6
D 1

2 and 6 are both possible

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Ans 1:

Rohan from Indian School Sohar, Sohar

Class : Class 9

Ans 2:

Gauransh Gupta from Manavsthali School R-block, NEW DELHI

Class : Class 5

Ans 3:

ARYAN PRASAD from Podar Internation School, Vadodara

Class : Class 9

1 , 2 and 6 all are the possibilities

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Nehal from New Horizon Gurukul, Bangalore

Subject :IMO Class : Class 4

Four basketball players scored the following numbers of points during four years of high school.
2005, 1983, 1990, 1899
Which of the following options shows the points in order from the greatest to the least?

A1990, 1983, 1899, 2005
B1990, 1983, 2005, 1899
C2005, 1990, 1899, 1983
D2005, 1990, 1983, 1899

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Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

(D):

2005 > 1990 > 1983 > 1899

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