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I need help with b. please

I need help with b. please-example-1
User Aquatic
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1 Answer

3 votes
its 1/5,

35/100 - 15/100 = 20/100

for 20, 40, 60, 80, 100
1, 2, 3, 4, 5

so 20/100 = 1/5
User Daniel Abou Chleih
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