Question

A large party balloon is being filled with helium at a constant rate. After 8 seconds, there is 2.5L of helium in the balloon.

b) The balloon will burst if there is more than 10 L of helium in it. How long will it take to fill the balloon with that much helium?

Answer 1

32 seconds

Explanation:

first 8 secknds gives us the value of set 2.5l

2.5L to make 10 =

10÷2.5=4

That said 2.5L fills 1pL by 4 giving us;

4×2.5= 10L