The product of two numbers is 108 and the sum of their squares is 225. The…
2025
The product of two numbers is 108 and the sum of their squares is 225. The difference of the number is:
Answer: C. 3 — Answer: 3 Explanation: Let the numbers be x and y. Then xy = 108 and x2 + y2 = 225 (x –y)2 = x2 + y2 – 2xy (x –y)2 = 225 – 216 (x –y)2 = 9 Therefore (x –y) = 3
- A.
5
- B.
4
- C.
3
- D.
None of these
Attempted by 30 students.
Show answer & explanation
Correct answer: C
Answer:
3
Explanation:
Let the numbers be x and y.
Then xy = 108 and x2 + y2 = 225
(x –y)2 = x2 + y2 – 2xy
(x –y)2 = 225 – 216
(x –y)2 = 9
Therefore (x –y) = 3
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