International Maths Olympiad Forum By SOF Olympiad Trainer

Pragun from Gaudium, Hyderabad

Subject :IMO Class : Class 3

The given bar graph shows the number of toy bikes five friends have. Study the given graph carefully and answer the following question.
(a) How many less toy bikes does Harsh has than Ankit and Virat have together?
(b) Find the total number of toy bikes all the five friends have.

A(a)-30, (b)-130
B(a)-20, (b)-130
C(a)-30, (b)-110
D(a)-25, (b)-100

But 35 20 = 55 so 55-20 =35 not 30

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Ans 1:

Pragun from Gaudium, Hyderabad

Class : Class 3

But 55 -20 =35 not 30

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Madhav Chhibber from The Shriram Millenium School, Noida

Subject :IMO Class : Class 6

Select the incorrect option.

ASolid - Net
BSolid - Net
CSolid - Net
DSolid - Net

The answer is D.

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Adwik nayak from Vbps, Noida

Subject :IMO Class : Class 4

The difference of two numbers is 7889. If the greater number is 52438, then find their sum.

A45469
B96987
C44549
D99689

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Ans 1:

Adarsh Kishor from Manav Rachna International Sector46, Gurgaon

Class : Class 4

B)96987

Ans 2:

Sojanya pradhan from Jindal school soyabali , Barbil

Class : Class 4

B)96987

Ans 3:

Sojanya pradhan from Jindal school soyabali , Barbil

Class : Class 4

B)96987

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Chhavi from Green Fields Public School, Delhi

Subject :IMO Class : Class 7

Insert the missing character, if the same rule is followed in (i), (ii) and (iii).

A 10
B 15
C 20
D 25

15

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UMA NAIR from hac trivandrum, Trivandrum

Subject :IMO Class : Class 6

Read the following statements carefully and select the correct option.
Statement-I : A number for which sum of all its factors is equal to the twice of the number is called a perfect number.
Statement-II : If a number is divisible by another number, then it is divisible by each of the factors of that number.

ABoth Statement-I and Statement-II are true.
BStatement-I is true but Statement-II is false.
CStatement-I is false but Statement-II is true.
DBoth Statement-I and Statement-II are false.

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Ans 1:

Aaryaman Santosh Kondhare from BVRTSE, Pune

Class : Class 6

Statement 1 is definitely wrong.

Ans 2:

Pranav Purohit from Sri sir ravishankar vidya mandir east, Bangalore

Class : Class 6

its wrong

Ans 3:

DEEPAM from DELHI PUBLIC SCHOOL DAMANJODI , DAMANJODI

Class : Class 6

Statement 1 should include the number itself instead of excluding the number to become a true statement

Ans 4:

Pranav Purohit from Sri sir ravishankar vidya mandir east, Bangalore

Class : Class 6

Ans 5:

Ayansh Modi from Air Force Bal Bharti, Delhi

Class : Class 8

Ans 6:

Rithvik Chandra from Greenwood High School, Bangalore

Class : Class 6

Ans 7:

Aaryaman Santosh Kondhare from BVRTSE, Pune

Class : Class 6

Ans 8:

Pranav Purohit from Sri sir ravishankar vidya mandir east, Bangalore

Class : Class 6

Ans 9:

Arjun Dongsarwar from Vibgyor High School, Balewadi, Pune

Class : Class 6

Statement 1 is incorrect as a perfect number's factors add up to twice the number including the number itself!!

Ans 10:

Vivaan sharma from Salwan public school , Mayur vihar delhi

Class : Class 6

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Ayansh Verma from National Public School ITPL, Bangalore

Subject :IMO Class : Class 7

By how much does 236 + (-152) - (- 136) exceed 139 + (- 124) - 45?

A220
B190
C250
D- 190

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Ans 1:

Adithi from Nps, Chennai

Class : Class 8

Ans 2:

Adithi from Nps, Chennai

Class : Class 8

Ans 3:

EKLAVYA GONDULE from DPS BHILAI, Bhilai

Class : Class 7

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SAPTARSHI SAHA from Hemsheela Model School, Durgapur

Subject :IMO Class : Class 8

If 6 monkeys take 6 minutes to eat 6 bananas, then how many minutes would 4 monkeys take to eat 4 bananas?

A4
B24
C8
DNone of these

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Chanchal Sharma from Universal high School, Thane West

Subject :IMO Class : Class 3

How many more parts must be shaded so that ³⁄₄ of the circle is shaded?

A4
B5
C2
D3

5, Is this correct?

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Ans 1:

Mahith from nhps, bangalore

Class : Class 3

A IS THE ANSWER SIUUUUUU

Ans 2:

Charvik Reddy from NPS , chennai

Class : Class 3

Veery bad

Ans 3:

Mahith from nhps, bangalore

Class : Class 3

NOT BAD

Ans 4:

Mahith from nhps, bangalore

Class : Class 3

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Arkajyoti Das from techno, Cooch Behar

Subject :IMO Class : Class 8

With a given rate of simple interest, the ratio of principal and amount for a certain period of time is 4 : 5. After 3 years, with the same rate of interest, the ratio of the principal and amount becomes 5 : 7. The rate of interest per annum is _______.

A4%
B5%
C6%
D7%

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Ans 1:

Kiyan from ,

Class : Class 8

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Arkajyoti Das from techno, Cooch Behar

Subject :IMO Class : Class 8

Evaluate :

A1
B³⁄₄
C1¹⁄₂₄
D²⁴⁄₂₅

hi

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