Question
PSLE
At first, Leah had a total of 51 blue and red balloons. 17 red balloons burst. She then increased the number of blue balloons by 75%. After that, Leah had a total of 40 balloons. How many red balloons did she have at first?
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PSLE
At first, Leah had a total of 51 blue and red balloons. 17 red balloons burst. She then increased the number of blue balloons by 75%. After that, Leah had a total of 40 balloons. How many red balloons did she have at first?