Question
PSLE
At first, Leah had a total of 59 red and black balloons. 18 black balloons burst. She then increased the number of red balloons by 80%. After that, Leah had a total of 61 balloons. How many black balloons did she have at first?
3 m

Click button first when a symbol is required. X

PSLE
At first, Leah had a total of 59 red and black balloons. 18 black balloons burst. She then increased the number of red balloons by 80%. After that, Leah had a total of 61 balloons. How many black balloons did she have at first?