Hunt the pattern

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2+3=8, 3+7=27, 4+5=32, 5+8=60, 6+7=72, 7+8=??

Solve it?


The answer is 98.

Manmeswar Patnaik by Manmeswar Patnaik , 22, India

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2 solutions

98

2+3=2*[3+(2-1)]=8

3+7=3*[7+(3-1)]=27

4+5=4*[5+(4-1)]=32

5+8=5*[8+(5-1)]=60

6+7=6*[7+(6-1)]=72

therefore 7+8=7*[8+(7-1)]=98

x+y=x[y+(x-1)]=x^2+xy-x

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Darshan Jaju
Apr 27, 2014

let y=0; 2 x 3 +( y=y+2) =8; 3 x 7 + (y=y+4)=27 4x5+(y=y+6)=32 5x8+(y=y+8)=60 6x7+(y=y+10)=72 so the last query....

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