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