Question

If the sum of three consecutive multiples of 5 is 300 find the
numbers.​

Answer 1

Answer:

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 ⇒x

2

+ x = 12 ⇒x

2

+ x - 12 = 0

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Answer 2

Answer:

the no progress of three multiple of 5 is the hcf of 3000