The sum of two numbers is 40 and their difference is 4. What is the product of the numbers?
Show answer & explanation
Correct answer: B
Explanation
The correct is option 2 i.e. 396.
Let the numbers be x and y.
Given:
x + y = 40
x − y = 4
Adding both equations:
2x = 44 ⇒ x = 22
Then, y = 40 − 22 = 18
Product = 22 × 18 = 396