International Maths Olympiad Forum By SOF Olympiad Trainer

VVM from dps, Ghaziabad

Subject :IMO Class : Class 9

A manufacturer marks his goods at 30% above the cost price. He allows a discount of 10% for cash customers and 15% for credit customers. 2/5 of the goods are sold for cash and the rest on credit. What is the percentage of profit or loss, when all the goods are sold?

A7.5% Profit
B13.1% Profit
C6.3% Loss
D8% Loss

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Shriyan Gupta from Gems Modern Academy, Dubai

Subject :IMO Class : Class 5

Which of the following figures is not symmetrical along the dotted line?

A
B
C
D

It can be (A) or (D) S.O.F. should look into this

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Ans 1:

Aharshi Kauri from Bishnupur High School, Bishnupur Bankura

Class : Class 7

D

Ans 2:

Rishi from Deens Academy, BENGALURU

Class : Class 7

Ans 3:

Pragnay Priyadarshi from Quantum Leap School, HYDERABAD

Class : Class 7

UNFAIR IT IS D AND SAYING C

Ans 4:

Aharshi Kauri from Bishnupur High School, Bishnupur Bankura

Class : Class 7

D

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thanvarsha from montfort, trichy

Subject :IMO Class : Class 9

Study the figure shown here (not drawn to scale), If ABG is a straight line, then find ∠ABH and ∠HBG respectively.

A110°, 120°
B120°, 125°
C120°, 60°
D110°, 115°

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Sri Vihan Chavva from Dhirubhai Ambani International School, Mumbai

Subject :IMO Class : Class 3

A water bottle costs ₹ 37. Find the cost of 9 such water bottles.

A ₹ 330
B ₹ 335
C ₹ 333
D ₹ 350

Correct Answer C

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rethish from Veltech, Avadi

Subject :IMO Class : Class 5

The quotient when 222816 is divided by 24 is __________.

A 9286
B 9284
C 9248
D 2984

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Ans 1:

SHUBHANI LAKHERA from ANN MARY SCHOOL, Dehradun

Class : Class 5

Thatâs actually write answer is b

Ans 2:

Saarth Agrawal from Podar International School , Mumbai

Class : Class 6

B is the answer. I made a small mistake because of which mine is wrong.

Ans 3:

Aharshi Kauri from Bishnupur High School, Bishnupur Bankura

Class : Class 7

B

Ans 4:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon

Class : Class 7

C

Ans 5:

Dhruv samavedula from Euroschool Whitefield, Bengaluru

Class : Class 5

Answer=3

Ans 6:

rethish from Veltech, Avadi

Class : Class 3

ans is B because 222816is divided by 24 is 9284 .

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Subikash Pal from Don Bosco, Kolkata

Subject :IMO Class : Class 8

Match the following :

Column-I	Column-II
(P) Diagonals of a rectangle	(1) Bisect each other at right angles
(Q) Diagonals of a square	(2) Bisect each other
(R) Diagonals of a rhombus	(3) Equal and bisect each other
(S) Diagonals of a parallelogram	(4) Equal and bisect each other at right angles

A (P) → (1), (Q) → (2), (R) → (3), (S) →(4)
B (P) → (3), (Q) → (4), (R) → (1), (S) →(2)
C (P) → (4), (Q) → (2), (R) → (3), (S) →(1)
D (P) → (4), (Q) → (3), (R) → (2), (S) →(1)

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Sravanthi from Clarence Public School, BANGALORE

Subject :IMO Class : Class 4

Figures (i) and (ii) shows two identical rectangles X and Y which are arranged differently. What is the difference between the perimeters of both the figures?

A2 cm
B6 cm
C4 cm
D8 cm