International Maths Olympiad Forum By SOF Olympiad Trainer

Advika Narkar from Shishukunj International School , Indore

Subject :IMO Class : Class 2

Raman is thinking of a 2 digit number.
The sum of the digits is 7.
The product of the digits is 12.
What is the number that Raman is thinking of?

A43
B62
C52
D42

SolutionLets check the options43: sum = 7; product = 1262: sum = 8; product = 1252: sum = 7; product = 1042: sum = 6; product = 8Therefore the number is 43.

Ans 1:

Sreyas from Don Bosco, Park Circus, Kolkata

Class : Class 5

actually i dont understand

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Advika Narkar from Shishukunj International School , Indore

Subject :IMO Class : Class 2

There is a certain relationship between the pair of figures on either side of : : .
Identify the relation between the pair and find the missing figure.

A
B
C
D

SolutionObject is mirrored, dotted lines are replaced by complete line and complete lines are replaced by dotted lines.

Ans 1:

Sajith G V from Srimathi Sundaravalli Memorial School, Chennai

Class : Class 2

A

Ans 2:

Prisha bhuyan from Chirec international school, Hyderabad

Class : Class 3

but the squares look the same

Ans 3:

Sashrika Pasunoori from KV Gachibowli, Hyderabad

Class : Class 5

A'

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Advika Narkar from Shishukunj International School , Indore

Subject :IMO Class : Class 2

Find the odd one out.

A
B
C
D

SolutionExcept (C) all others have only 3 black balls.

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Advika Narkar from Shishukunj International School , Indore

Subject :IMO Class : Class 2

Ram earns Rs. 8 for every hour that he works. If he works from 1 p.m. to 10 p.m., how much money will he earn?

ARs. 62
BRs. 52
CRs. 42
DRs. 72

SolutionNumber of hours Ram works = 1pm to 10pm = 9hoursMoney he will earn = 9 x 8 = Rs 72

Ans 1:

Tadepalli Dhanvislok from Rabindranath World School, Gurgaon

Class : Class 3

D

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Jessica Sheen from Asan Memorial Senior Secondary School, Chennai

Subject :IMO Class : Class 3

Find the value of P × Q + R.

A23
B25
C21
D19

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Saksham from Bloom public school, New delhi

Subject :IMO Class : Class 5

43,29,52,280 43,29,25,280

A >
B <
C =
D None of these

Ans 1:

Aharshi Kauri from Bishnupur High School, Bishnupur Bankura

Class : Class 7

A

Ans 2:

Saksham from Bloom public school, New delhi

Class : Class 4

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Leonel Barnabas from Bharatiya Vidya Bhavan Public School , Hyderabad

Subject :IMO Class : Class 5

In a company's election for the position of CEO, X, Y and Z are competing. Candidate X got 5826740 votes, Y got 3456990 votes. If the total number of votes was 16936620, how many votes did candidate Z get? Who won the election?

A7652980, Z
B7652890, X
C7652880, Y
D7652890, Z

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Ans 1:

Rohan Parthasarathy from TSA, BLR

Class : Class 8

Ans 2:

Saanvi Prasad from DPS Noida, Noida

Class : Class 5

D

Ans 3:

AREEN from BOLTON, HYDERABAD

Class : Class 6

Ans is D. Formula to find the votes of candidate Z=Total number of votes-(Votes of candidates X and Y)=16936620-(5826740+3456990)=16936620-9283730=7652890. Now compare the number of votes of X and Y from the left, then compare the candidate who got more number of votes with Z in the same way:1:Comparing number of votes of candidates X and Y:5>3, so candidates X got more number of votes than candidate Y. 2:Comparing number of votes of candidates X and Z:7>5, so candidate Z won the election.