International Maths Olympiad Forum By SOF Olympiad Trainer

Adithya from Psbb senior secondary school, Chennai

Subject :IMO Class : Class 5

Estimate the sum of 15869 + 45674 when rounded off to nearest thousands.

A61500
B62000
C61000
D61600

b is the correct answer

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Seerat Kaur Sowanni from Deens Academy, Bangalore

Subject :IMO Class : Class 6

The net of a solid is given. Identify the shape and find the number of faces of the solid formed when the net is folded.

ATriangular pyramid, 4
BSquare pyramid, 5
CTriangular prism, 5
DTetrahedron, 6

isn't tetrahedron and triangular pyramid the same thing? and doesn't both of them have four faces?

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Joshua Sen from Montfort Senior Secondary School, Roorkee

Subject :IMO Class : Class 6

Match the following.

A(A) - (q), (B) - (r), (C) - (s), (D) - (p)
B(A) - (q), (B) - (s), (C) - (r), (D) - (p)
C(A) - (q), (B) - (p), (C) - (s), (D) - (r)
D(A) - (q), (B) - (s), (C) - (p), (D) - (r)

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Joshua Sen from Montfort Senior Secondary School, Roorkee

Subject :IMO Class : Class 6

Find the area of the unshaded part of the figure.

A45 sq. cm
B52 sq. cm
C68 sq. cm
D78 sq. cm

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Joshua Sen from Montfort Senior Secondary School, Roorkee

Subject :IMO Class : Class 6

Find the least number of squares that must be added so that the line MN becomes a line of symmetry.

A5
B6
C4
D8

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Joshua Sen from Montfort Senior Secondary School, Roorkee

Subject :IMO Class : Class 6

Pointing to a man in a photograph, Megha said, 'His mother's only daughter is my mother'. How is Megha related to that man?

ANephew
BNiece
CWife
DSister

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Aayush Parekar from Dr.Kalmadi Shamrao High School, Pune

Subject :IMO Class : Class 6

Study the following statements and select the correct option.
P : A variable can take different values.
Q : The value of a variable which satisfies the given equation is called its solution.

ABoth P and Q are true
BBoth P and Q are false
CP is true but Q is false
DP is false but Q is true

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Joshua Sen from Montfort Senior Secondary School, Roorkee

Subject :IMO Class : Class 6

What fraction of the adjoining figure is shaded?

A
B
C
D

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Joshua Sen from Montfort Senior Secondary School, Roorkee

Subject :IMO Class : Class 6

The ratio of 60 cm to m is __________ .

A1 : 8
B1 : 4
C1 : 3
D1 : 2

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Joshua Sen from Montfort Senior Secondary School, Roorkee

Subject :IMO Class : Class 6

If A is a point in the interior of a circle with centre O and radius r, then which of the following is definitely true?

AOA > r
BOA < r
COA = r
DCan't be determined

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