Question

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

Answer 1

Let another no.be x
A positive number is 5 times another no = 5x
If 21 is added to both the no .then one of the new no.become the twice the other new no.= x + 21 = 5x + 21
*6x =42
*x = 42 / 6 *
*x = 7.
x = 7
5x = 5×7
=35

Answer 2

Given:

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

To find:

• Required numbers ?

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Solution:

Let the required numbers be x and 5x

According to the question,

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➜ 2 (x + 21) = 5x + 21

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➜ 2x + 42 = 5x + 21

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➜ 2x - 5x = 21 - 42

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➜ - 3x = - 21

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➜ 3x = 21

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➜ x = 21 / 3

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➜ x = 7

Therefore,

• First number = x = 7
• Second number = 5x = 5 × 7 = 35

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