International Maths Olympiad Forum By SOF Olympiad Trainer

Darsh Bansal from DL DAV, DELHI

Subject :IMO Class : Class 5

Mansi took 47 minutes to complete her homework. She finished her homework at 12:07 p.m. At what time did she start doing her homework?

A11:20 a.m.
B11:30 p.m.
C11:45 a.m.
D11:20 p.m.

Ans 1:

Ayaansh Lad from Vibgyor High, Balewadi, pune

Class : Class 5

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Kartavya from DPS WhiteField, Bangalore

Subject :IMO Class : Class 4

The given figure is made up of 5 identical rectangles. The length and breadth respectively of each rectangle are 8 cm and 3 cm. Find the perimeter of the given figure (not drawn to scale).

A83 cm
B80 cm
C78 cm
DNone of these

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Ans 1:

Haritha Rangarajan from ,

Class : Class 5

Ans 2:

Suhani from SOI, Bangalore

Class : Class 6

Ans 3:

Kartavya from DPS WhiteField, Bangalore

Class : Class 4

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Vivaan Dhall from Manav Rachna International School Sector 46, Gurgaon

Subject :IMO Class : Class 4

Anjali bought one dress, one shirt and one T-shirt. The T-shirt costs Rs. 150. The shirt costs Rs. 250 more than the T-shirt. The dress costs twice as much as the T-shirt. How much did she spend on the three items?

(A) Rs. 950

(B) Rs. 1050

(C) Rs. 750

(D) Rs. 850

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Ans 1:

Vivaan Dhall from Manav Rachna International School Sector 46, Gurgaon

Class : Class 4

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Vriksh Roy Meharia from DPS Bangalore East, bangalore

Subject :IMO Class : Class 5

The given table shows the prices of 3 different types of eggs. of the eggs Priyanka bought were chicken eggs. of them were century eggs and the rest were quail eggs. If Priyanka spent a total amount of ₹ 6.50 on the chicken and century eggs, then how much did she spend on the quail eggs?

A₹ 1.25
B₹ 1.40
C₹ 1.65
D₹ 1.80

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Ans 1:

Aditya Prasad Samant from ,

Class : Class 5

Ans 2:

Moukthika from NPS Agara , Bangalore

Class : Class 6

Ans 3:

nandini badola from christ school, dehradoon

Class : Class 7

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SAARTHAK SAHU from KVS NOIDA , NOIDA

Subject :IMO Class : Class 4

hours = _____________ seconds.

A24800
B24100
C24600
D24500

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Ans 1:

Jeevika from St Marys , Titardi , Udaipur

Class : Class 9

how is line C-D even parallel to line X-Y? dumbo

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Anuj Thakur from Vidya Niketan School, Haryana

Subject :IMO Class : Class 9

Study the following information carefully and answer the question given below.
(i) In a family of 6 persons, there are two couples.
(ii) The Lawyer is the head of the family and has only two sons-Mrinal and Rakesh-both Teachers.
(iii) Mrs. Reena and her mother-in-law both are Lawyers.
(iv) Mrinal's wife is a Doctor and they have a son, Ajay.

What is/was Ajay's Grandfather's occupation?

A Teacher
B Lawyer
C Doctor
D Can't be determined

How it this not correctIt's given from 1 statement that the head has two sons Mrinal and Rakesh Now from 4th statement Mrinal's wife has a son Ajay which means mrAjay is Mrinal's sonAnd some the head is the father of Mrinal who is LawerIt is clear that the occupation of Ajay's Grandfather is Lawyer

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Ans 1:

Anshu from Dav, Mumbai

Class : Class 9

B lawyer

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Suyash Agrawal from ,

Subject :IMO Class : Class 8

Solve the following :
(i) The length of a room is double its breadth. Its height is 3 metres. The area of its four walls (including doors) is 108 m². Find its volume.
(ii) The volume of a cylinder is 448 p cm³ and height is 7 cm. Find its lateral surface area.

A(i)-216 m³, (ii)-148 cm²
B(i)-190 m³, (ii)-352 cm²
C(i)-216 m³, (ii)-352 cm²
D(i)-198 m³, (ii)-150 cm²

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Ans 1:

Sparsh Kumar from Akshara International School, PUNE

Class : Class 8

p means the value of pi. It is represented as p in some questions.

Ans 2:

Suyash Agrawal from ,

Class : Class 8

It’s not written correctly , it’s written that the volume is 448p cm3 what is that supposed to mean . Clearly the framing of the question is wrong

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AASHRITH from Meru International school, Hyderabad

Subject :IMO Class : Class 4

Which of the following numbers has the greatest number of factors?

A81
B45
C32
D24

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Ans 1:

Aaradhya Mishra from Army Public School, Noida, noida

Class : Class 4

Answer is C

Ans 2:

Aaradhya Mishra from Army Public School, Noida, noida

Class : Class 4

Ans 3:

AASHRITH from Meru International school, Hyderabad

Class : Class 6

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ADVAY BANSAL from LOTUS VALLEY INTERNATIONAL SCHOOL GURUGRAM, GURUGRAM

Subject :IMO Class : Class 5

Find the figure from the options which completes the Fig. (X).

A
B
C
D

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Sarvottam Nayak from Kendriya Vidyalaya, Nagpur

Subject :IMO Class : Class 6

Starting from a point P, Sachin walked 20 metres towards South. He turned left and walked 30 metres. He then turned left and walked 20 metres. He again turned left and walked 40 metres and reached a point Q. How far and in which direction is the point Q from the point P?

A 20 metres West
B 10 metres East
C 10 metres West
D 10 metres North

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