  # If 3 2 = 7, 5 4 = 23, 7 6 = 47, 9 8 = 79 then 10 9 = ?

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If

``````3   2 = 7
5   4 = 23
7   6 = 47
9   8 = 79
``````

Then

``````10  9 = ??
`````` posted Jun 27, 2015

–1 vote

3×2+1=7
5×4+3=23
7×6+5=47
9×8+7=79
10×9+9=99
Therefore ,99 can also be correct..........<:..... answer Mar 9, 2016 by anonymous
since in question last digit is chanched from odd to even and vice versa.. so this pattern should be change in last vertical line also
so it become 8
then 10×9+8=98
–1 vote

3*2 + 1 = 7
5*4 + 3 = 23
7*6 + 5 = 47
9*8 + 7 = 79
10*9 + 8 = 98
11*10 + 9 = 119

Ans :- 98 answer Mar 10, 2016
–1 vote

we will have
10 9 = 99 answer Mar 10, 2016
–1 vote

a b = c

soln = square[a] -2 answer Apr 20, 2016
–1 vote

98 Following pattern is applicable
(n*m) + m -1 where, n = digit on right
. m = digit on left answer Apr 24, 2016
–1 vote

ans=10x9+8=98 answer Apr 25, 2016
–1 vote

2*3´+1=7
4*5+3=23
6*7+5=47
8*9+7=79 answer Oct 15, 2016 by anonymous
–1 vote

3 2 = 7 3 + 2^2 +0 =7
5 4 = 23 5 + 4^2 +2 =23
7 6 = 47 7 + 6^2 +4 =47
9 8 = 79 9 + 8^2 +6 =79
10 9 = 99 10+ 9^2 +8 =99 answer Sep 14, 2017
Wrong sir ji
why this procedure is wrong , it may be also right , once check my procedure and tell where it is wrong
–1 vote

If we take 1st digit of next line and multiply with 1st digit of starting line and substract 1st digit of starting line numbers.and if we notice one row is odd and other is even but the question line is opposite of above line.
Eg. 3 2
5 4
7 6
9 8 so next should be
11 10 but in question i.e. 10 9 so we can find answer this way. 4 3
7 6
10 9
13 12

eg. 5*2-3=7
7*4-5=23
9*6-7=47
11*8-9=79
13*9-10=107 answer Sep 25, 2017 by anonymous
Wrong

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