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Makayla
Makayla

Secondary 1 chevron_right Math chevron_right United states

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Date Posted: 1 year ago
Views: 78
snell
Snell
1 year ago
10 qns take 25 min
so, on average,
1 qn takes 25÷10 = 2.5 min

thus,
12 qns take 2.5 × 12 = 30 min

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