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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
Answer can be B and D both

Ans 2:

Class : Class 7
B

Ans 3:

Class : Class 10

Ans 4:

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

Ans 5:

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

Ans 6:

Class : Class 9
It should be both D and B

Ans 7:

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 8:

Class : Class 6
the answer is D.

Ans 9:

Class : Class 7

Ans 10:

Class : Class 8
Check the solution

Ans 11:

Class : Class 9
Ans is surely D as rectangle

Ans 12:

Class : Class 6

Ans 13:

Class : Class 8
D

Ans 14:

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

Ans 15:

Class : Class 6
Ans. should be D

Ans 16:

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

Ans 17:

Class : Class 7
Answer is d.

Ans 18:

Class : Class 8
The ans is surely B

Ans 19:

Class : Class 3
Ans=B

Ans 20:

Class : Class 5
answer is d not b. you can make a rectangle and a line and a triangle with 12 dots

Ans 21:

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

Ans 22:

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 23:

Class : Class 6
Answer is d

Ans 24:

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

Ans 25:

Class : Class 10
ANS = D

Ans 26:

Class : Class 6
Answer is d

Ans 27:

Class : Class 3

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