Question

Which of the following multipliers will cause a number to be increased by $29.7\%$ ?

• A. $1.297$
• B. $12.97$
• C. $129.7$
• D. $1297$

Answer 1

The correct option is A

$1.297$

Determine the correct option.

Explanation for the correct option:

Option A. $1.297$

Let the required number be $x$. Then, according to the question

The given number is increase by $29.7\%$ .

So the equation formed as follow:

$$\begin{gathered} x+\frac{29.7x}{100}=\frac{129.7x}{100} \\ =1.297x \end{gathered}$$

Hence the correct option is $\mathrm{A}$.

Explanation for incorrect option:

There is no way more than one multiplier will cause a number to be increased by $29.7\%$ and that one multiplier is determined above which is $1.297$

Hence,Option B, Option C, Option D are incorrect options.

Hence the correct option is $\mathrm{A}$.