Question Details

The sum and product of two integers are 26 and 165 respectively. The difference between these two integers is

Options

A

2

B

3

C

4

D

6

Show Answer

Correct Answer :

Option C

4

4

Solution :

The correct answer/option is 4.

Let the two integers be represented by the variables x and y.

From the problem description, we are given two pieces of information:
1. The sum of the two integers is 26:
x+y=26
2. The product of the two integers is 165:
xy=165

We want to find the absolute difference between these two integers, which is:
|x-y|

We can use the algebraic identity that relates the sum, product, and difference of two numbers:
(x-y)2=(x+y)2-4xy

Now, let's substitute the known values into the identity:
(x-y)2=262-4(165)

Calculate the square of 26:
262=676

Calculate the product of 4 and 165:
4165=660

Substitute these values back into the equation:
(x-y)2=676-660
(x-y)2=16

Taking the square root of both sides gives the difference between the two integers:
|x-y|=16=4

Thus, the difference between the two integers is 4.

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