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Date Posted: 5 years ago
Views: 489
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
so, on average,
1 qn takes 25÷10 = 2.5 min
thus,
12 qns take 2.5 × 12 = 30 min
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done
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Hope this helps :)
Date Posted:
5 years ago
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