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Find the number which replaces the question mark ?

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posted Jun 17, 2014 by Kapil Kapoor

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2 Solutions

+2 votes

Third column of each row is equals to 1 less than the sum of first two numbers .

(row 1) -- 2+8 =10
10-1 =9
(row 2) -- 3+2 = 5
5-1 =4
(row 3)--- 3+6 =9
9-1=8(Answer)

HENCE Missing number will be 8 .

solution Oct 29, 2014 by Amit Kumar Pal
+1 vote

The missing number should be 1,
First row contain square of 17 (289)
Second row contain square of 18 (324)
So the third row may be square of 19 (361) where 1 is missing number.

Another possibility can be made out of this :-)

Last column is the sum of 2nd column and (1st colum -1)

9=8+(2-1)
4=2+(3-1)
?=6+(3-1)
?=8

:-)

solution Jun 17, 2014 by Rohith Tp
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