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1.
The sum of two numbers is 5. And their product is 4 Then what is the difference between the numbers ?
- A. 1
- B. 1
- C. 1
- D. 1
Answer: Option C
Explanation:
ATQ,
x + y = 5......(i) ,
xy = 4
So, x - y = 3 .....(ii)
We get from (i) + (ii) -
2x = 8
or, x = 5
So, y = 1
Now, x - y = 4 - 1 = 3
x + y = 5......(i) ,
xy = 4
So, x - y = 3 .....(ii)
We get from (i) + (ii) -
2x = 8
or, x = 5
So, y = 1
Now, x - y = 4 - 1 = 3
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