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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 3
Ans=B

Ans 2:

Class : Class 3

Ans 3:

Class : Class 9
It should be both D and B

Ans 4:

Class : Class 8
Check the solution

Ans 5:

Class : Class 6

Ans 6:

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 7:

Class : Class 8
D

Ans 8:

Class : Class 6
answer is d not b. you can make a rectangle and a line and a triangle with 12 dots

Ans 9:

Class : Class 7
B

Ans 10:

Class : Class 7

Ans 11:

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 12:

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

Ans 13:

Class : Class 6
Answer is d

Ans 14:

Class : Class 8
The ans is surely B

Ans 15:

Class : Class 8
Answer can be B and D both

Ans 16:

Class : Class 10
ANS = D

Ans 17:

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

Ans 18:

Class : Class 6
the answer is D.

Ans 19:

Class : Class 9
Ans is surely D as rectangle

Ans 20:

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

Ans 21:

Class : Class 7
Answer is d.

Ans 22:

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

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 6
Ans. should be D

Ans 26:

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

Ans 27:

Class : Class 10

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