International Maths Olympiad Forum By SOF Olympiad Trainer

Inaaya from Greenwood High, BANGALORE URBAN

Subject :IMO Class : Class 8

The square root of correct upto two decimal places is ________.

A 2.68
B 2.69
C 2.67
D 2.66

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SHREYAN GUPTA from GARDEN HIGH SCHOOL, KOLKATA

Subject :IMO Class : Class 8

A labourer is paid ₹ 806 for 13 days of work. If he receives ₹ 1,798, for how many days did he work?

A 29
B 35
C 60
D 40

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Atharv Gupta from Pawar Public school, pune

Subject :IMO Class : Class 10

Out of group of Swans, times the square root of number of Swans are playing on the shore of the tank. Remaining two are quarreling in the water. Find the total number of swans and the number of Swans playing on the shore of the tank respectively.

A14, 16
B16, 12
C14, 12
D16, 14

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Ishan ghosh from National Public School ,East, Bangalore

Subject :IMO Class : Class 3

Which of the following shows part shaded?

A
B
C
D

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Ans 1:

Anush nikam from Lexicon, pune

Class : Class 3

Eff

Ans 2:

Anush nikam from Lexicon, pune

Class : Class 3

Ans 3:

Anush nikam from Lexicon, pune

Class : Class 3

Thanks Thank you

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Tejas Agarwal from Prudence School , New Delhi

Subject :IMO Class : Class 8

Read the given statements carefully and select the correct option.
Statement I : The length of one parallel side of a trapezium is 18 cm more than the other parallel side and distance between them is 28 cm. If the area of the trapezium is 1344 cm², then the shortest parallel side is 39 cm long.
Statement II : If each block of ice measures 5 cm × 6 cm × 5 cm, then 250 block of ice can be put in a box of dimensions 0.5 m × 0.5 m × 1.5 m.

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

Statement 2 tells that the blocks CAN BE PUT in the box or not so answer should be true.According to the solution, it says that a box of the volume REQUIRED is more than actual requirement. But the requirement is not asked.For example:- a small ball can be put in a small box AS WELL AS a big box. It can NEVER happen that the ball can be put in a small box but not in a big box. Son either question is wrong or solution is wrong.

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Ans 1:

Aditya Kumar Shukla from DPS international, GURGAON

Class : Class 8

Ans 2:

Ashvik Banerjee from Mount Litera Zee School , Vasco

Class : Class 9

This is A

Ans 3:

Ashvik Banerjee from Mount Litera Zee School , Vasco

Class : Class 9

This is A

Ans 4:

Ashvik Banerjee from Mount Litera Zee School , Vasco

Class : Class 9

Sorry ,I guess it must be C as the box accommodates all the ice blocks in it . I was answering another question.

Ans 5:

vishant mishra from Deens Academy, Bengaluru

Class : Class 2

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Abhang from Pisk, Kolhapur

Subject :IMO Class : Class 8

Suppose for the principal P, rate R% and time T years the simple interest is S and compound interest is C. Consider the possibilities :
(i) C > S
(ii) C = S
(iii) C < S
Which of the following options hold?

AOnly (i) is correct.
BEither (i) or (ii) is correct.
CEither (ii) or (iii) is correct.
DOnly (iii) is correct.

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Ans 1:

Indra Sinha from south point, kolkata

Class : Class 9

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Shriyan Sengupta from Julien Day School, Kalyani, Kalyani

Subject :IMO Class : Class 4

The difference between the place values of '8' and '4' in 78045 is ____ .

A 7690
B 7960
C 7900
D 7000

JKO

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Yashit Saxena from Delhi Public School Miyapur, Hyderabad

Subject :IMO Class : Class 1

Which of the following is not a correct match ?
A
B
C
D

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Divij Gupta from Lotus Valley International school, Noida

Subject :IMO Class : Class 10

In a trapezium ABCD, AB∥DC, DC = 2AB and EF∥AB, where E and F lie on BC and AD respectively such that If diagonal DB intersects EF at G, then 7EF = kAB. Find the value of k.

A7
B9
C10
D11

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Havish jale from CHIREC INTERNATIONAL SCHOOL, Hyderabad

Subject :IMO Class : Class 4

Priyanka read a 252 pages book in a week. She read same number of pages each day. How many pages did she read each day?

A 42
B 32
C 34
D 36

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