Question : Study the given graph and answer the question that follows.
In which year was the production of computers by the company 16% more than the average exports of computers in the six years (2013 to 2018)?

Option 1: 2015

Option 2: 2018

Option 3: 2014

Option 4: 2016

Question : The value of $(x^{\frac{1}{3}}+x^{-\frac{1}{3}})(x^{\frac{2}{3}}-1+x^{-\frac{2}{3}})$ is:

Option 1: $x^{-1}+x^{\frac{2}{3}}$

Option 2: $x+x^{-\frac{1}{3}}$

Option 3: $x^{\frac{1}{3}}+x^{–1}$

Option 4: $x+x^{–1}$

Question : Study the given graph and answer the question that follows.

By what percent were the total exports of computers, by the company, in 2013, 2014, and 2018 less than the total production of computers from 2015 to 2017 (correct to one decimal place)?

Option 1: 28.8

Option 2: 32.6

Option 3: 43.1

Option 4: 30.1

Question : If $x=2+\sqrt3$, then the value of $\frac{x^{2}-x+1}{x^{2}+x+1}$ is:

Option 1: $\frac{2}{3}$

Option 2: $\frac{3}{4}$

Option 3: $\frac{4}{5}$

Option 4: $\frac{3}{5}$

Question : If $x+\frac{1}{x}=1$, then the value of $\frac{x^2+7x+1}{x^2+11x+1}$:

Option 1: $\frac{3}{4}$

Option 2: $\frac{2}{3}$

Option 3: $\frac{1}{3}$

Option 4: $\frac{1}{4}$