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1. when squared value of a number is subtracted from 5 times of a number the result is 6.what is the number?
- A. -2
- B. -2
- C. -2
- D. -2
Answer: Option B
Explanation:
5x-x²=6
or, x(5-x)=6
or, x²-5x+6=0
or, x(x-2)-3(x-2)=0
or, (x-2)(x-3)=0
So, x=2,3 [3 isn't in the options]
(ans)
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