Question

The number of states that joined the United States between $1776$ and $1849$ is twice the number of states that joined between $1850$ and $1900$. If $30$ states joined the United States between $1776$ and $1849$ and x states joined between $1850$ and $1900$, which of the following equations is true?

• A. $30x=2$
• B. $2x=30$
• C. $\frac{x}{2}=30$
• D. $x+30=2$

Answer 1

Answer: (B)

$2x=30$

Number of states joined between $1850$ and $1900=x$ (Given)

$\therefore$ number of states that joined the United States between $1776$ and $1849=2x$

As it is given that $30$ states joined the United States between $1776$ and $1849$.

$\therefore$ $2x=30$

Hence, B is correct answer.