International Maths Olympiad Forum By SOF Olympiad Trainer

Sahasra Shanker from KV IIT, Chennai

Subject :IMO Class : Class 5

Mr. Sahni is 1.68 m tall. His son is 5/8 of his height. How tall (in cm) is his son?

A100
B101
C103
D105

Correct answer is (D).SolutionHeight of Mr.Sahiniâs son = 5/8 x Height of Mr. Sahini = 5/8 x 1.68 = 1.05m = 105cm

Ans 1:

Hansikaa from Jaigopal Garodia Rashtrothana Vidya Kendra, Bangalore

Class : Class 8

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Sahasra Shanker from KV IIT, Chennai

Subject :IMO Class : Class 5

Arrange the given words as they arranged in Dictionary.

A2, 4, 3, 1
B2, 4, 1, 3
C4, 2, 3, 1
D4, 2, 1 3

Correct answer is (B).SolutionIn dictionary the word are arranged in alphabetical order as,Icecream - 2Iceland - 4India - 1Island - 3

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SAMRA BISWAS from KENDRIYA VIDYALAYA BARRACKPORE AIRFORCE, BARRACKPORE

Subject :IMO Class : Class 7

What is the least number of squares that must be added so that the line AB becomes a line of symmetry?

A 4
B 5
C 6
D 7

Ans 1:

Arya from Global Indian International School, AHMEDABAD

Class : Class 7

Ans 2:

Arya from Global Indian International School, AHMEDABAD

Class : Class 7

Ans 3:

Aanvi Singhal from OWIS INTERNATIONAL SCHOOL , Sarjapur Road

Class : Class 7

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Purbayon Sarkar from South Point High School, Kolkata

Subject :IMO Class : Class 7

Ans 1:

Prabhat from phoenix greens, hyderabad

Class : Class 6

Ans 2:

Ailish Garg from Oberoi International School, JVLR, Mumbai

Class : Class 9

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Adhrit from CHSV, Chennai

Subject :IMO Class : Class 7

Mr Gupta asked two of his students to solve the expression and write the answer on blackboard. Aryan wrote the answer as 3 a-⁴b⁵ whereas Ayan wrote the answer as . Who wrote the correct answer?

A Aryan
B Ayan
C Both of them
D None of these

That looks like 3a^4-b^5, not 3a^-4*b^5

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Ans 1:

Saanvi Prasad from DPS Noida, Noida

Class : Class 5

option c

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anu from Haralur, Bengaluru

Subject :IMO Class : Class 2

Complete the number pattern in the following questions.
18, 22, 26, ......., 34, 38

A 30
B 28
C 32
D 24

a

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Ans 1:

Rishon Raj from Mount Litera Zee school, Cuddalore

Class : Class 2

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Tuviksh from Bombay Scottish School Powai, Mumbai

Subject :IMO Class : Class 9

Amit scored 73 marks in Mathematics. He scored 56% marks in English and x marks in Science. Maximum marks in each subject were 150. The overall percentage of marks obtained by him was 54%. How many marks did he score in Science?

A84
B86
C89
D73