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Subject :IMO    Class : Class 6

By using dot (ยท) patterns, which of the following numbers can be arranged in all the three ways namely a line, a triangle and a rectangle?

A 9
B 10
C 11
D 12


Clarify the question

Ans 1:

Class : Class 8
Check the solution

Ans 2:

Class : Class 3
Ans=B

Ans 3:

Class : Class 8
D

Ans 4:

Class : Class 9
Answer is definitely D because 12 is divisible by both 4 and 3 so rectangle and triangle both can be made ............ line can be made from all numbers

Ans 5:

Class : Class 6
Ans is D and B also....

Ans 6:

Class : Class 8
The ans is surely B

Ans 7:

Class : Class 7
Answer is d.

Ans 8:

Class : Class 10
ANS = D

Ans 9:

Class : Class 10

Ans 10:

Class : Class 6

Ans 11:

Class : Class 7
B

Ans 12:

Class : Class 8
answer is D only but it is showing B

Ans 13:

Class : Class 3

Ans 14:

Class : Class 7
answer is d not b. you can make a rectangle and a line and a triangle with 12 dots

Ans 15:

Class : Class 9
Ans is surely D as rectangle

Ans 16:

Class : Class 6
Ans. should be D

Ans 17:

Class : Class 6
the answer is D.

Ans 18:

Class : Class 6
There is no mention of what type pattern, we can make line, triangle and rectangle with 12 dots also

Ans 19:

Class : Class 9
It should be both D and B

Ans 20:

Class : Class 8
Answer can be B and D both

Ans 21:

Class : Class 8
D, is the answer but it is showing wrong so you could choose B.

Ans 22:

Class : Class 6
Answer is d

Ans 23:

Class : Class 8
Answer is D. We can form a triangle and rectangle with 12 dots.

Ans 24:

Class : Class 7
Answer is definitely d. How can you make an square with 10

Ans 25:

Class : Class 6
Answer is d

Ans 26:

Class : Class 8
In pascal's triangle, the 1st row is always 1, second row is natural number, 3rd is of numbers which can form triangles, 4th is of numbers which can form rectangles. So the number common in rows 2, 3

Ans 27:

Class : Class 7

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