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Subject :IMO    Class : Class 3

How many triangles are there in the given figure?


A18
B19
C20
D21


so hard

Ans 1:

Class : Class 6
the ans should be D

Ans 2:

Class : Class 3
Answer is 20 option b ,but there is a mistake in the solution, but final answer is c.

Ans 3:

Class : Class 6

Ans 4:

Class : Class 5
c

Ans 5:

Class : Class 5
SOF you don't know addition 12 9 = 21

Ans 6:

Class : Class 3
There is a mistake.9 4 5 1 2=21. The 9 should have been 8.Then only 20 will come.

Ans 7:

Class : Class 6

Ans 8:

Class : Class 3
The solution in the left side should be 8 triangles not 9.

Ans 9:

Class : Class 3
Sof you don,t know addition 12 9=21

Ans 10:

Class : Class 3
Sof really doesn't know addition true, but i am sure it is just a printing mistake

Ans 11:

Class : Class 5
Actually ans IS C but you have given wrong explanation why.In the biggest triangle there are 5 triangles

Ans 12:

Class : Class 5

Ans 13:

Class : Class 1

Ans 14:

Class : Class 3
Right answer is A

Ans 15:

Class : Class 7

Ans 16:

Class : Class 4

Ans 17:

Class : Class 6

Ans 18:

Class : Class 5

Ans 19:

Class : Class 4
Answer is C

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