Math, asked by directioner77, 1 year ago

a positive number is 5 times another number. if 21 is added to both the numbers then one of the new numbers becomes twice the other new number. what are the other numbers ​

Answers

Answered by prachisawhney
3

Answer:

mate the answer is 35

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explaination

Step-by-step explanation:

let me tell u how

we will keep the smaller no as 5x

now if 21 is added to both no. then

(x + 21 = 2x + 42 )

solve

5x - 2x = 42 - 21

3x =. 21

x = 21/3= 7

So the positive number is = 5×7 = 35

answer is 35

Answered by Anonymous
4

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A positive number is 5 times another number. If 21 is added to both the numbers, then one of the new numbers becomes twice the other new number. What are the numbers?

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Let above number be 'x'

 \leadsto \tt{2  \times x + 21 = 5x + 21}

 \leadsto \tt{2  x + 42 = 5x + 21}

 \leadsto \tt{2  x - 5x   =   21 - 42}

 \leadsto \tt{- 3x   =   21 }

 \leadsto \tt{ 3x   =   21 }

 \leadsto \tt{ x   =    \frac{21}{3}  }

 \leadsto \tt{ x   =    7}

So the two numbers are 7 and 35.

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