Question

Please help question is picture

Answer 1

After 5 minutes the two balloons will be at the same height.

Explanation:

Let, the two balloons will be at the same height after t minutes.

Then, according to the question,

15 + 20t = 195 - 16t

⇒ 36t = 180

⇒ t =
`\frac {180}{36}`

⇒ t = 5

So, after 5 minutes the two balloons will be at the same height.