Question

If

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

Then

10  9 = ??

Answer 1

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..........<:.....

Comments

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

Answer 2

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 3

we will have
10 9 = 99

Answer 4

a b = c

soln = square[a] -2

Answer 5

98 Following pattern is applicable
(n*m) + m -1 where, n = digit on right
. m = digit on left

Answer 6

ans=10x9+8=98

Answer 7

2*3´+1=7
4*5+3=23
6*7+5=47
8*9+7=79
10*9+11=101(By adding prime numbers)

Answer 8

Answer: 99
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

Comments

Wrong sir ji

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why this procedure is wrong , it may be also right , once check my procedure and tell where it is wrong

Answer 9

107 can be answer
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

Comments

Wrong