Question : The fourth proportional to 3.6, 4.2, and 5.4 is:

Option 1: 1.4

Option 2: 7.2

Option 3: 1.2

Option 4: 6.3

Question : The volume of a cube is 2.197 cm³. Find the side of the cube.

Option 1: 1.3 cm

Option 2: 1.4 cm

Option 3: 1.1 cm

Option 4: 1.2 cm

Question : The third proportional to 4 and 6 is:

Option 1: 9

Option 2: 16

Option 3: 6

Option 4: 36

Question : What is the value of $\frac{1.2 \times 1.2+0.2 \times 0.2+1.2 \times 0.4}{1.8 \times 1.8+0.4 \times 0.4-1.8 \times 0.8} ?$

Option 1: 0.1

Option 2: 0.25

Option 3: 0.2

Option 4: 1

Question : Find the fourth proportion to 8,14, and 24.

Option 1: 42

Option 2: 26

Option 3: 40

Option 4: 36

Question : A man can row 12 km/hr in still water. It takes him 4 times as long to row up as to row down the river. The speed of the stream is:

Option 1: 7.2 km/hr

Option 2: 3.6 km/hr

Option 3: 9.8 km/hr

Option 4: 4.9 km/hr