Question

A number is twice the other number. If their sum is 30,find the numbers.​

Answer 1

Step-by-step explanation:

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Answer 2

To find:-

• Numbers

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$\huge\bf\underline\red{\: Solution}$

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Let the other number be 'x'

• It is given that a number is twice the other number.

So,

Number be '2x'.

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According to question

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• Sum of both numbers is 30.

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Thus,

✣ x + 2x = 30

$\implies \tt \: 3x = 30$

$\implies \tt \: x = \frac{30}{3}$

$\implies \tt \: x = 10$

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Verification:-

✣ x + 2x = 30

• Put x = 10

$\implies \tt \: 10 + (2 \times 10) = 30$

$\implies \tt \: 10 + 20 = 30$

$\implies \tt \: 30 = 30$

Hence, verified.

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Therefore

Number is 2x = 2 × 10 = 20

Other number is 10.