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The product of two successive integral …

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The product of two successive integral multiples of 5 is 300 . Determine the multiples.

Posted by Anamika Prabhakar 6 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 6 years, 1 month ago

Let one number be x, so that the other number is x+5.
According to the given question,
x(x+5)=300
x2+5x-300=0
(x+20)(x-15)=300
x=-20 and x=15

<div>x cannot be negative, since the numbers are successive integral multiples of 5.
So, x=15, and x+5=20
Hence, the multiples are 15 and 20.</div>

1Thank You

Sneha Kumari 6 years, 1 month ago

Required numbers = 15 and 20

1Thank You

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CBSE > Class 10 > Mathematics