Algebramedium · Past Paper
The sum of two numbers is 25 and their difference is 7. Find the numbers.
A16, 9
B15, 10
C18, 11
D14, 11
✓ Correct Answer: A — 16, 9
x+y=25, x-y=7. Adding gives 2x=32 (x=16). Subtracting gives 2y=18 (y=9).
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