International Maths Olympiad Forum By SOF Olympiad Trainer

Tavish from Sanskriti Hyderabad, Hyderabad

Subject :IMO Class : Class 4

How many possible combinations of 1 bird and 1 tree can be made from 3 birds and 4 trees?

A9
B10
C8
D12

o. of combinatios=3x4=12

Ans 1:

dhanyashree from BVM Global, Chennai

Class : Class 5

D

Ans 2:

Tavish from Sanskriti Hyderabad, Hyderabad

Class : Class 7

Ans 3:

Manish Saruparia from NPS Singapore, Singapore

Class : Class 2

Hi

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Ansuman das from Dav public school, Cuttack

Subject :IMO Class : Class 5

Poonam starts walking from point C and reaches point I while walking through points D, E, F, G and H. If she moves only in East, North and South directions, then how many minimum number of times did she make 90° turns?

A5
B4
C3
D6

IT CAN BE 5 ALSO .

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Ans 1:

Vivaan gulati from NPS international , Singapore

Class : Class 5

Should be C but iz B

Ans 2:

Aharshi Kauri from Bishnupur High School, Bishnupur Bankura

Class : Class 7

B

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Samriddha Das from BURDWAN MUNICIPAl HIGH SCHOOL, BURDWAN

Subject :IMO Class : Class 8

The radii of the bases of two cylinders are in the ratio of 1 : 2 respectively and their heights are in the ratio 2 : 1 respectively. Find the ratio of their volumes.

A 1 : 2
B 1 : 4
C 2 : 1
D 4 : 1

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Aviral Goyal from DPS RKP, New Delhi

Subject :IMO Class : Class 5

Select a figure from the options which will continue the same series as established by the Problem Figures.

A
B
C
D

1/2 CLOCKWISE, 1 CLOCKWISE, 1 1/2 CLOCKWISE, 2 CLOOCKWISE

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Aarav Srivastav from DWPS , Noida Extension

Subject :IMO Class : Class 7

Perimeter of a rectangular garden is 1.2 × 10⁵ km and length is 0.2 × 10⁵ km. Find the area of the garden in standard form.

A 8 × 10⁶ km²
B 0.8 × 10⁸ km²
C 80 × 10⁸ km²
D 8.0 × 10⁸ km²

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Ans 1:

Nidhish koushik from Kennedy high the global school, Hyderabad

Class : Class 7

8.0 x 10â¸ kmÂ²

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Manish Mulimani from chrysalis high, Bengaluru

Subject :IMO Class : Class 5

Which of the squares must be shaded so that the figure is symmetrical?

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Ans 1:

Rohit Reddy from Bharatiya Vidya Bhavans Public School, HYDERABAD

Class : Class 5

wrong answer 3 only

Ans 2:

Sahil Sabne from Gurukul, Pune

Class : Class 7

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Shashi Shekar B S from Carmel School, BANGALORE

Subject :IMO Class : Class 7

Match the following.

Column-I	Column-II
(i) For any two integers a and b, a × b is also an integer. Thus, integers are	(A) Distributive under addition and multiplication
(ii) a × b = b × a; this denotes that integers are	(B) Positive quotient
(iii) a × (b + c) = a × b + a × c; this denotes that integers are	(C) Closed under multiplication
(iv) The division of a negative integer by another negative integer results in	(D) Commutative under multiplication

A (i) → (B), (ii) → (C), (iii) → (D), (iv) → (A)
B (i) → (C), (ii) → (D), (iii) → (A), (iv) → (B)
C (i) → (D), (ii) → (C), (iii) → (A), (iv) → (B)
D (i) → (C), (ii) → (D), (iii) → (B), (iv) → (A)

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Ans 1:

Shivang Sheoran from APS, Delhi

Class : Class 8

the answer shud be C not B

Ans 2:

Aishwarya S R from Sunshine senior secondary school, Chennai

Class : Class 7

Ans 3:

Rithvik from BVM Global, Chennai

Class : Class 9

a *b = b*a this commutative law so ans must be b or d. iii. ans a because it is distibutive law simple.... b is the ans

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Adhrit from CHSV, Chennai

Subject :IMO Class : Class 6

The bar graph given below shows the weights of a beaker when empty and when different balls are placed in it.

How much heavier is ball C than ball B ?

A40 grams
B60 grams
C80 grams
D20 grams