Question : The difference between 24 and the mean proportional of 7 and 63 is:

Option 1: 3

Option 2: 2

Option 3: 5

Option 4: 4

Question : What is the mean proportional between 3 and 27?

Option 1: 30

Option 2: 81

Option 3: 15

Option 4: 9

Question : Acceleration is:

Option 1: Inversely proportional to the force

Option 2: Inversely proportional to mass

Option 3: Directly proportional to mass

Option 4: Directly proportional to the force

Question : Find 2 numbers such that their mean proportional is 25 and their third proportional is 25.

Option 1: 5 and 5

Option 2: 5 and 25

Option 3: 25 and 125

Option 4: 25 and 25

Question : What is the fourth proportional of $3 \sqrt{5}, 5 \sqrt{8}$, and $3 \sqrt{10}$?

Option 1: $10 \sqrt{5}$

Option 2: $40 \sqrt{2}$

Option 3: $30$

Option 4: $20$