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Subject :IMO    Class : Class 7

In the given question, identify the pattern and find out the missing character.



A13
B10
C5
D0


Ans 1:

Class : Class 7

Ans 2:

Class : Class 7
ANSWER IS 13. FROM PATTERN 1 WE GET TO KNOW THAT THE PRODUCT OF SQUARE 1 AND 2 SUBTRACTED BY THE THIRD GIVES OUT THE NUMBER IN TRIANGLE.FOR INSTANCE, 5*4-8=12 3*5-4=11 4*5-7=13.

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