BrainDen.com - Brain Teasers # marcussoori

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## Posts posted by marcussoori

1. ### Mensa Math/Logic Problems...How to Solve?

And what is the method to solve problems like 3/20?

3. ### Mensa Math/Logic Problems...How to Solve?

Any solution for the 3rd 8/20?

4. ### Mensa Math/Logic Problems...How to Solve?

For the 2nd 8/20, is the answer 7?

5. ### Mensa Math/Logic Problems...How to Solve?

I also can't solve the 2nd 4/20

6. ### Mensa Math/Logic Problems...How to Solve?

I still can't figure out 15/20...anyone?

7. ### Mensa Math/Logic Problems...How to Solve?

For the third image, 8/20, isn't there an error on the last row of the problem? I am using the XOR method you described (add images and remove overlapping areas). Anyway, I believe the solution is the fifth option.

8. ### Mensa Math/Logic Problems...How to Solve?

For the first image, 4/20, answer is 75. For each row, add the two numbers, and then reverse the digits. If the addition results in a number over 100, add the 1 to the last digit, then reverse the resulting two digit number.

9. ### Mensa Math/Logic Problems...How to Solve?

For the second 9/20, answer is 62? Multiply 2 numbers outside of circle, subtract the multiplication of the two remaining numbers, and you have the number in the middle of the circle.

10. ### Mensa Math/Logic Problems...How to Solve?

Thanks for all the answers, esp. 11/20! I forgot that equation from high school math.

I have an alternate solution for 9/20, the shapes problem.

6 3 5 4 4

\ \ / \ / /

\ \ / \ / /

\ \ / \ / /

\ \/ \ / /

\ /\ \ / /

\ / \ / \ /

\ / \ / \ /

-1 \ +1 -1 ? ----> +1 (so 4+1 = 5)

So are there multiple solutions to these problems?

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