# Hammer Saw Toolbox Math Puzzle - with Answer

#### Hammer Saw Toolbox Math Puzzle

Can you solve the above puzzle and find the value of the fourth image?

**ANSWER**

27kg is the answer.

__Explanation__

Let us assume:

a = Hammer;

b = Saw

c = Toolbox

Now the first image becomes:

a + b = 10 --> equation 1

The second image becomes:

b + c = 20 --> equation 2

The third image becomes:

a + c = 24 --> equation 3

Now let us subtract equation 2 & 3

=> (b + c) - (a + c) = 20 - 24

=> b + c - a - c = -4

=> b - a = -4

=> a - b = 4

=> a = 4 + b --> equation 4

Now let us solve equation 1:

(4 + b) + b = 10 (We replaced a with (4 + b))

=> 4 + 2b = 10

=>** b = 3**

Now let us solve equation 2:

3 + c = 20

=> **c = 17**

Now let us solve equation 3:

a + 17 = 24

=>** a = 7**

Therefore the fourth image (a + b + c) becomes:

=> 7 + 3 + 17 **=> 27 kg**

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