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23 September, 22:17

Maxine spent 15 hours doing her home work last week, this week she spent 18 hours doing homework she says that she spent 120% more time doing home work this week. Is she correct?

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  1. 23 September, 23:37
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    Yes, as 20% of 15 is 3, which is how much longer she spent this week, added to the full 100% makes 120%
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