Lisa had a total of 66 blue and pink balloons.

17 pink balloons burst.

she then increased the number of blue balloons by 75%.

After that, Lisa had a total of 79 balloons.

How many pink balloons did she have at first?

may I know if the solution is as below? If not ,

Appreciate the help to solve it.

thanks

solution:

66-17 = 49 ( blue+pink)

79–49= 30 increase blue

75%=30 

100%=40

66-40=26 answer