Question
PSLE
At first, Leah had a total of 147 green and brown balloons. 19 brown balloons burst. She then increased the number of green balloons by 70%. After that, Leah had a total of 198 balloons. How many brown balloons did she have at first?
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PSLE
At first, Leah had a total of 147 green and brown balloons. 19 brown balloons burst. She then increased the number of green balloons by 70%. After that, Leah had a total of 198 balloons. How many brown balloons did she have at first?