International Maths Olympiad Forum By SOF Olympiad Trainer

Rasha Ranjan from DPS NOIDA , Noida

Subject :IMO Class : Class 5

Which of the following options is true?

A 1.3749 < 1.0399
B 1.7908 < 1.879
C 1.526 < 1.2605
D 1.463 < 1.3902

Ans 1:

ARNAV MITTAL from NPS HSR LAYOUT, BANGALORE

Class : Class 4

Ans 2:

Shaurya Agrawal from kothari international school, pune

Class : Class 2

Ans 3:

Abhijeet Kumar Jha from New Era Senior Secondary School, Nizampura, Vadodara

Class : Class 5

B

Ans 4:

Soumyajit Das from Hariyana Vidya Mandir, NORTH 24 PARGANAS

Class : Class 7

cccc

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L SURYANARAYANA from Javahar vidya Mandir, Ranchi

Subject :IMO Class : Class 4

Which of the following two figures have same perimeter?

AP and Q
BQ and R
CP and R
DNone of these

Ans 1:

Parth Kathuria from Kothari International School, Noida

Class : Class 4

The correct ans is option D.

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madhu from sanskriti, new delhi

Subject :IMO Class : Class 8

Mohit invests a sum of ₹ 41,250 at the rate of 6% per annum. What approximate compound interest will he obtain at the end of 3 years?

A ₹ 8,100
B ₹ 7,425
C ₹ 8,210
D ₹ 7,879

Ans 1:

Shaurya Verma from NPS HSR, Bangalore

Class : Class 9

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madhu from sanskriti, new delhi

Subject :IMO Class : Class 8

Using Euler’s formula, find the value of P, Q and R.

	P	Q	R
A	6	19	9
B	6	18	10
C	7	20	9
D	9	6	20

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Nirbhay Kumar from Kendriya Vidyalaya, R K Puram Sector 8 New Delhi

Subject :IMO Class : Class 10

A boat goes 32 km upstream and 36 km downstream in 7 hours. In 9 hours, it can go 40 km upstream and 48 km downstream. If x represents the speed of the boat in still water in km/hr and y represents the speed of the stream in km/hr, then_______.

A x + y = 12, x – y = 8
B x + y = 5, x – y = 11
C x + y = 6, x – y = 10
D x + y = 10, x – y = 6

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Ans 1:

Nirbhay Kumar from Kendriya Vidyalaya, R K Puram Sector 8 New Delhi

Class : Class 10

Ans 2:

KETAKI SUBHASH GHATOL 2 from CSA Satara, Satara

Class : Class 10

Ans 3:

Sahasra Shanker from KV IIT, Chennai

Class : Class 6

How to solve this?

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Nischit from Kensri, Bengaluru

Subject :IMO Class : Class 10

A rectangular park is 100 m by 50 m. It is surrounded by semicircular flower beds all round. Find the cost of levelling the semicircular flower beds at 60 paise per m².

A ₹ 31425
B ₹ 28260
C ₹ 352.40
D ₹ 282.60

the correct answer is supposed to be 5887.5 rupees

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SAMRIDHI RAJ from DAV MODEL SCHOOL, KHARAGPUR

Subject :IMO Class : Class 3

The given chart shows the number of eggs produced on a farm in the first five months of the year.

Which of the following statements is Correct?

A The number of eggs produced in April were less than in February.
B The number of eggs produced in May were less than in March.
C The number of eggs produced in January were less than in March.
D The number of eggs produced in May were less than in February.

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Ans 1:

Vighnesh from DYPIS, Navi Mumbai

Class : Class 3

I made a mistake (selected A)

Ans 2:

Advay Rustagi from Vidyashilp Academy , Bengaluru

Class : Class 5

b is correct me got 5/5 fgbvfgfrdsdsczxdc

Ans 3:

Bhavinkumar Gosai from The New Tulip International School, Ahmedabad

Class : Class 4

Ans 4:

Avik Arya from Trileaves Global school , Chennai

Class : Class 3

The awnser is B

Ans 5:

Advay Rustagi from Vidyashilp Academy , Bengaluru

Class : Class 5

Ans 6:

shuddhi choubey from euro school mumbai, Bhopal

Class : Class 4

b

Ans 7:

SAMARPAN DAS from Notre Dame Academy, Salakati Kokrajhar

Class : Class 7

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Ishaan Ahuja from TSMS, Noida

Subject :IMO Class : Class 6

Find the greatest number which will divide the greatest 3-digit number and the greatest 4-digit number exactly.

A 9
B 8
C 7
D 3

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Rujuta Mahajan from SSRVM Pune, Pune

Subject :IMO Class : Class 6

A set of three figures X, Y and Z showing a sequence of folding of a piece of paper. Fig. (Z) shows the manner in which the folder paper has been cut. Select a figure from the options which would closely resemble the unfolded form of Fig. (Z).

A
B
C
D