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Sarah saved ₱10 on Sunday and double her savings each day there after. How much did he save on the 7th day?
₱640
» ₱10 = Saved on Sunday
» Day 1 = ₱10
» Day 2 = ₱20
» Day 3 = ₱40
» Day 4 = ₱80
» Day 5 = ₱160
» Day 6 = ₱320
» Last Day = ₱640
» ₱640 = Sarah saved on the 7th day
Sarah saved ₱10 on Sunday Doubled that each day 10 × 2, 20 × 2, 40 × 2, 80 × 2, 160 × 2, and 320 × 2 = ₱640. By Calculating and Double 'ling you can get the answer.
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