Question

$If 10 is added to the twice of a number, the result is 40. Find the number$ (Equation)

Answer 1

the number is 15 because,

15 twiced =15+15=30

10+30=40

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Answer 2

Question -:

If 10 is added to twice of a number, the result is 40. Find the number.

Answer -:

• The required number is 15.

Step-by-step explanation -:

Given -:

• 10 is added to twice of a number.
• The result is 40.

To find -:

• The number by making an equation.

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Let the number be x.

Twice the number x = 2x.

Here, 10 is added to twice the number (2x).

The expression formed = 2x + 10.

The result is 40.

Thus, we have -:

$2x + 10 = 40$

$2x = 40 - 10$

$2x = 30$

$x = \frac{30}{2}$

$x = 15.$

Thus, the required number is 15.

How to verify?

To verify your answer, just put 15 in place of x and see if the LHS = RHS.

Given -:

• x = 15.

Putting 15 in place of x, we get -:

$2 \times 15 + 10 = 40$

$30 + 10 = 40$

$40 = 40.$

Since LHS = RHS,

Hence verified ✔️✔️

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