0.3 when expressed as a ratio of two integers, becomes :

1. $\dfrac{103}{330}$

2. $\dfrac{52}{165}$

3. $\dfrac{103}{111}$

4. $\dfrac{104}{333}$

Only by inspecting the prime factors of the denominator, state which of the following fractions will be a terminating decimal?

1. $\dfrac{7}{12}$

2. $\dfrac{2}{15}$

3. $\dfrac{3}{16}$

4. $\dfrac{4}{21}$

The number which is to be subtracted from $\sqrt{72}$ to get $\sqrt{32}$ is:

1. $2\sqrt{10}$

2. $4\sqrt{2}$

3. $3\sqrt{2}$

4. $2\sqrt{2}$

If x = 3 + $2\sqrt{2}$, then $x + \dfrac{1}{x}$ equals to :

1. $4\sqrt{2}$

2. $6\sqrt{2}$

3. 6

4. 4