What is indirect Proportion.

What is direct Proportion

When x and y are in indirect proportion and if y doubles then x becomes_______

What is fourth Proportional and Third proportional.

What is Mean Proportional

What is the third proportional to 9 and 45 ?

What is the third proportional to 10 and 30?

What is the third proportional to 16 and 24 ?

Under what is the heat produced in an electric circuit: (i) directly proportional (ii) inversely proportional to the resistance of the circuit ?