Ahot air balloon rises at a rate of 38 km/h and starts at the height of 60 km. another balloon started from the ground and is rising at the rate of 50 km/h. at this rate what height will they be at when they are at the same height?

Height = 250km

Step-by-step explanation:

Given,

rate of rise of ballon 1 = 38 km/h

rate of rise of ballon 2 = 50 km/h

Let the time after which both the ballons will reach same height be 't'.

hence, after 't' hours,

⇒ height of ballon 1 = height of ballon 2

⇒ 38t + 60 = 50t

⇒ 12t = 60

⇒ t = 5 hours

so, the height at which both the ballons will be at the same height will be 250km.

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.