Question : Find the third proportional to 16 and 20.

Option 1: 25

Option 2: 23

Option 3: 24

Option 4: 26

Question : The ratio of the third proportional to 16 & 40 and the mean proportional between 10 & 40 is:

Option 1: 5 : 1

Option 2: 1 : 5

Option 3: 4 : 1

Option 4: 1 : 4

Question : Find the fourth proportional of 22, 66 and 11.

Option 1: 23

Option 2: 33

Option 3: 17

Option 4: 39

Question : Find the LCM of $\frac{3}{2}, \frac{81}{16}$ and $\frac{9}{8}$

Option 1: $\frac{91}{2}$

Option 2: $\frac{81}{2}$

Option 3: $\frac{111}{2}$

Option 4: $\frac{101}{2}$

Question : What is the simplified value of
$\left(1-\frac{1}{4-\frac{2}{1+\frac{1}{\frac{1}{3}+2}}}\right) \times \frac{15}{16} \div \frac{2}{3}$ of $2 \frac{1}{4}-\frac{3+4}{3^3+4^3}$

Option 1: $\frac{5}{13}$

Option 2: $\frac{4}{13}$

Option 3: $\frac{8}{13}$

Option 4: $\frac{6}{13}$