Math Riddle: If, 5 + 3 – 2 = 48; Then, 5 + 2 + 3 – 4 + 4 – 3 = ?

Bhavini

28 Dec 2017

Look at the equations given in the math riddle and find the logic behind them.

Find the value of the question mark in the last equation.

If,

5 + 3 – 2 = 48;

4 – 3 + 3 = 28.

Then,

5 + 2 + 3 – 4 + 4 – 3 = ?

You will notice that these are not straight forward addition and subtraction like it seems. So you will have to find the operations that are done on the left hand side of the equation to get the result on the right hand side.

So were you able to solve the riddle? Leave your answers in the comment section below.

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Show Answer

Answer: 98

Explanation:

If you carefully observe all the equations you will see the pattern in the equations. There are more than one operation that is done to get the resultant number on the right hand side of the equation.

First solve the equations linearly, then take the result and multiply all the positive numbers on the left hand side. Now add the resultant numbers and drop the negative numbers from the equation.

For example in the first equation which is;

5 + 3 – 2 = 48;

Linearly solving them gives you the result: 5 + 3 – 2 = 6

So now multiply all the positive numbers by 6 and drop the negative numbers from the equation on the left hand side;

5 x 6 + 3 x 6 = 30 + 18 = 48

Similarly for 2nd equation;

4 – 3 + 3 = 4;

4 x 4 + 3 x 4 = 16 + 12 = 28

Therefore we see: 4 – 3 + 3 = 28.

Then for the last equation to find the missing number we solve it as,

5 + 2 + 3 – 4 + 4 – 3 = 7

now multiplying 7 to all the positive numbers and dropping the negative numbers we get;

5 x 7 + 2 x 7 + 3 x 7 + 4 x 7 = 35 + 14 + 21 + 28 = 98

Therefore;

5 + 2 + 3 – 4 + 4 – 3 = 98.