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Question
The product of two successive integral multiples of 5 is 300. Determine the multiples.
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Solution
Ans : 15, 20 or -15, -20
Hint :
Let the successive multiples of 5 be 5x and 5(x + 1). Then,
5x.5(x + 1) = 300 ⇒x2 + x = 12 ⇒x2 + x - 12 = 0
Hint :
Let the successive multiples of 5 be 5x and 5(x + 1). Then,
5x.5(x + 1) = 300 ⇒x2 + x = 12 ⇒x2 + x - 12 = 0
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