Question
If 10 men working 10 hours a day can make 10 quilts in
10 days, then in how many days 20 men working 20 hours per day will make 20 quilts?Solution
Let the number of days be x. According to question, => (10 ×  10 ×  10)/10 = (x ×  20 ×  20)/20 => x = 5
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