alleryThe sum of two numbers is 25 and their difference is 5. Find them.
A18 and 7
B15 and 10
C20 and 5
D12 and 13
Answer & Solution
Correct answer: B. 15 and 10
Let the numbers be x and y.
x + y = 25 and x − y = 5. Add: 2x = 30 ⇒ x = 15, y = 10.
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