Question : The fourth proportion of numbers 8, 20 and 15 is:

Option 1: 37.5

Option 2: 10

Option 3: 10.6

Option 4: 200

Question : Simplify the given expression. $\frac{(4.2)^3-0.008}{(4.2)^2+0.84+0.04}$

Option 1: 4

Option 2: –2

Option 3: 2

Option 4: –4

Question : Find the fourth proportion of the numbers $\frac{1}{3}{rd}$ of 15, $\frac{4}{5}{th}$ of 25, $\frac{3}{7}{th}$ of 35:

Option 1: 65

Option 2: 55

Option 3: 60

Option 4: 50

Question : Find the fourth proportion for 15, 55, and 81.

Option 1: 231

Option 2: 297

Option 3: 335

Option 4: 313

Question : Find the fourth proportion to 0.24, 0.6, and 20.

Option 1: 50

Option 2: 24

Option 3: 54

Option 4: 48