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A positive number is 5 time …

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A positive number is 5 time another number. If 21 is added to both the numbers, then one of the new numbers become twice of other new numbers. Find the original numbers.

Posted by Ananya Vashishist 4 years, 8 months ago

CBSE > Class 08 > Mathematics

2 answers

Kaynat Khan 4 years, 8 months ago

Let the number be=x Let the second Number be =5x 2(2x+21)=5x+21 2x+42=5x+21 42-21=5x-2x 21=3x x=21/3 x=7

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Siva Suna 4 years, 8 months ago

Answer-let the another no be x Then the positive no is 5 times =5x According to the question x+21 is another no 5x+21 is positive no so, 5x+21=(x+21)2 =5x+21=2x+42 =5x-2x=42-21 =3x=21 =x=21/3=7 positive =5multiply by 7=35

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