Question : What is the fourth proportional to 24, 120, and 22?

Option 1: 110

Option 2: 120

Option 3: 100

Option 4: 90

Question : $O$ is the orthocentre of triangle $ABC$, and if $\angle BOC = 110^\circ$, then $\angle BAC$ will be:

Option 1: $110^\circ$

Option 2: $70^\circ$

Option 3: $100^\circ$

Option 4: $90^\circ$

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 : 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 : The fourth proportional to 6, 8, and 12 is:

Option 1: 15

Option 2: 12

Option 3: 18

Option 4: 16

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: $20$