Set 5questions on inverse variation for jss2

Here are 5 questions on inverse variation for JSS2:

1. If y varies inversely as x, and y = 12 when x = 3, find y when x = 6.
2. The number of men (m) required to complete a piece of work varies inversely as the time (t) taken. If 10 men can complete the work in 20 days, how many men are required to complete the same work in 5 days?
3. Suppose a varies inversely as b. If a = 20 when b = 2, what is the value of b when a = 5?
4. The pressure (P) of a gas is inversely proportional to its volume (V). If the pressure is 100 Pa when the volume is 50 m³, what is the pressure when the volume is 25 m³?
5. If p varies inversely as q, and p = 8 when q = 3, find the value of q when p = 12.