1.
The sum of two numbers is 50 and their difference is 10. What is the product of the two numbers?
A
600
B
575
C
525
D
650
View Answer
Correct Answer: A — 600
Explanation:
Let numbers be x and y. x + y = 50, x – y = 10. Solving: x = 30, y = 20. Product = 30 × 20 = 600.