Question
PSLE
At first, Leah had a total of 134 white and purple balloons. 10 purple balloons burst. She then increased the number of white balloons by 70%. After that, Leah had a total of 187 balloons. How many purple balloons did she have at first?
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PSLE
At first, Leah had a total of 134 white and purple balloons. 10 purple balloons burst. She then increased the number of white balloons by 70%. After that, Leah had a total of 187 balloons. How many purple balloons did she have at first?