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### Answer with Explanation

Answer is 16.

**How?**

Its a little trickier one then others.

sqr root(64) * 5 = 40

sqr root(81) * 7 = 63

sqr root(16) * 4 = ? = 16.

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Answer is 16.

**How?**

Its a little trickier one then others.

sqr root(64) * 5 = 40

sqr root(81) * 7 = 63

sqr root(16) * 4 = ? = 16.

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Answer is 6.

**How?**

It is the simple subtraction as we used to do in our early maths classes in our childhood, so just reminds us of those days of taking carry and subtracting.

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Answer is 9.

**How?**

Here, every element in second row = corresponding column element in first row * 2.

Similarly every element in third row = corresponding column element in first row * 3.

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Answer is 30.

**How?**

Sum of the numbers on vertices of a triangle should be 90, i.e. 20 + 40 + ? = 90 => ? = 30.

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Answer is 6.

**How?**

Here, Number in a block is sum of the number on the top and right block so 7 = 1 + ?, hence ? should be 6.

Answer is 0 OR 16.

**How?**

Here, there is no special pattern except that they are continuous numbers which are jumbled up, so the missing number can either be 0 or 16.

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Answer is 9.

**How?**

Here, every middle element is the sum of the other two so answer should be 6+3 = 9.

by Ankur 4 Comments

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Answer is 54325

How?

Just keep appending the new number to the previous answer 🙂

by Ankur 2 Comments

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Given

6 – 1 x 0 + 2 / 2

= 6 – 0 + 1

= 7

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Given

11×11 = (1+1)*(1+1) = 4

12×12 = (1+2)*(1+2) = 9

13×13 = (1+3)*(1+3) = 16