math reasoning-Puzzle 323

 By Panos kalliantasis

Test your reasoning skills
Can you find the logical relation of the equations and then find the missing number?

If

6*8=49

7*9=66

8*10=85

Then

9*11=??

Try to solve it yourself and discover the rule that the equations follow.

 

Scroll down to see the answer 



The pattern is A*B
=A*B+AP(1,3,5,7,.....)
6*8= 6*8+1=49
7*9= 7*9+3=66
8*10= 8*10+5=85
9*11= 9*11+7=106
Correct answer is 106


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 70 selective math reasoning exercises to practice various arithmetic reasoning patterns
Try to solve them yourself and discover the rule that the equations follow.


In each exercise the answer and detailed reasoning are given to compare your answers and interactively develop your skills.








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