according to the sequence find the number

Level 1

See the next sequence then find the number accordingly 2+5=21, 6+8=28, 4+9=65, So 3+7=...........?


The answer is 40.

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2 solutions

Vikas Verma
Oct 10, 2014

Difference b/w 2 & 5 is 3 and addition is 7 and the logic is difference * addition i.e 3*7=21. So no.

Noel Lo
Jun 8, 2015

x + y = x 2 y 2 x+y = x^2 - y^2 .

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