Question
PSLE
At first, Leah had a total of 64 black and blue balloons. 15 blue balloons burst. She then increased the number of black balloons by 75%. After that, Leah had a total of 61 balloons. How many blue 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 64 black and blue balloons. 15 blue balloons burst. She then increased the number of black balloons by 75%. After that, Leah had a total of 61 balloons. How many blue balloons did she have at first?