HomeMaths ProblemsIf the Sum of the Two Number is 42 and their Product...

# AKIF HAMEED

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## Table of Contents – If the Sum of the Two Number is 42 | Solution | Problem Solved

• If the sum of two numbers is 42.
• Their product is 437.
• Find the absolute difference between these numbers.

## Important Points to Solve the Problem

• If the sum of the two number is 42
• and their product is 437.

The absolute difference between the numbers can be figure out as follows.

Let suppose the numbers are “y” and “z”.

As the sum of two numbers is 42.

y + z = 42 __________ (i)

The product is 437 so,

yz = 437 __________ (ii)

Through equation (i) and (ii), we can find out the difference between the numbers (y – z).

## To Find

Difference between the numbers = ?

## Solution

Let suppose

Numbers = y and z

Now; according to given condition

y + z = 42 ________ (1)

yz = 437 ________ (2)

y = 437/z

putting in equation (i)

437/z + z = 42

437 + z2 = 42z

z2 – 42z + 437 = 0

z2 – 23z – 19z + 437 = 0

z (z – 23) – 19 (z – 23) = 0

(z – 19) (z – 23) = 0

z = 19        or      z = 23

putting both the values in equation (i) separately

y + 19 = 42

y = 42 – 19

y = 23

or

y + 23 = 42

y = 42 – 23

y = 19

So, numbers are 19 and 23.

Difference  = y – z = 23 – 19 = 4 answer