International Maths Olympiad Forum By SOF Olympiad Trainer

d chaitra reddy from CHIREC International School, Hyderabad

Subject :IMO Class : Class 4

Read the given statements carefully and state 'T' for true and 'F' for false.
(i) Roman numeral for the largest three digit even number is CMXCIX.
(ii) In Roman numeral system, V can be subtracted from X.
(iii) The Hindu-Arabic numeral for CDLXIX is 469.

A(i)-F, (ii)-F, (iii)-T
B(i)-F, (ii)-T, (iii)-F
C(i)-T, (ii)-F, (iii)-T
D(i)-T, (ii)-T, (iii)-F

How can v not be subtracted from x

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Ans 1:

Aadya Gupta from GEAR Innovative Intl. School, Bangalore

Class : Class 5

good

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Tejaojas Abhilash from Naipunya Public School , Kochi, Kochi

Subject :IMO Class : Class 7

Answer the following questions and select the correct option.
(a) A wire of length 352 cm is bend to form a circle. What is the area of the circle formed?
(b) A parallelogram PQRS has two sides PQ and QR are 14 cm and 8 cm. If the height corresponding to PQ is 4 cm, then find the height corresponding to QR.

A(a)-9896 cm²; (b)-8 cm
B(a)-6844 cm²; (b)-6 cm
C(a)-6844 cm²; (b)-8 cm
D(a)-9856 cm²; (b)-7 cm

no

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Karthikeya from Sanskriti, Pune

Subject :IMO Class : Class 7

In the given figure, if AD is the perpendicular bisector of BC, then which of the following is correct?

AABC is an isosceles triangle.
BAD is an angle bisector of ∠A.
COnly B
DBoth A and B

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Ans 1:

Aarav Jain from St Xaviers High School Sector 48 , Gurugram

Class : Class 7

IT SHOULD BE B AS IT CAN BE EQUILATERAL TRIANGLE ASWELL IT IS NOT NECESSARY TO BE ISOCELES

Ans 2:

Karthikeya from Sanskriti, Pune

Class : Class 7

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Kiash Gangineni from National Public School, Bengaluru

Subject :IMO Class : Class 6

Which of the following options is INCORRECT?

APositive integer > zero > negative integer
BPositive integer > negative integer < zero
CZero < positive integer > negative integer
DPositive integer > zero < negative integer

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Ans 1:

Kiash Gangineni from National Public School, Bengaluru

Class : Class 6

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Ishan Boggarapu from NPS Whitefield, Bangalore

Subject :IMO Class : Class 7

The simple interest on a certain sum of money at the rate of 12% p.a. for 1 year 3 months is ₹ 1260. At what rate of interest p.a. the same amount of interest can be received on the same sum after 5 years?

A10%
B3%
C9%
D15%

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Siddharth from Siddharth Suman, Purnea

Subject :IMO Class : Class 7

Read the following statements carefully and select the correct option.
Statement-I : Number of times 264 cm long wire can be wrapped around a circle with diameter 14 cm is 6.
Statement-II : The area of parallelogram is 756 m². If its height is 48 m, then the length of the corresponding base is 20 m.

AStatement-I is false but statement-II is true.
BStatement-I is true but statement-II is false.
CBoth statement-I and statement-II are true.
DBoth statement-I and statement-II are false.

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Aadya Chauhan from Xavier School Gamharia, Jamshedpur

Subject :IMO Class : Class 9

If p and q are remainders when x³ + 2x² – 5mx – 7 and x³ + mx² – 12x + 6 are divided by x + 1 and x – 2 respectively and 2p + q = 6, then the value of m is

A1
B2
C3
D4