P5 work backwards 2

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Dorothy and Rachel had some beads at first. Dorothy gave 1/6 of her beads to Rachel. Rachel then gave 2/5 of her beads to Dorothy. In the end, both of them had 180 beads each . How many beads did Rachel have at first? Dorothy Rachel -1u + 1u -2p + 2 p 3p -->180 5u-->180-2p=180-2x60=60 6u 5u 5p 3p -->180 180 1p-->180/3=60 1u-->60/5=12 5p-1u-->5x60-12= 288 (ans.) ?

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