Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?
Answers
A) 1800 B) 900 C) 2500 D) 2700 E) None of these
Explanation :   Let required number of bottles be x   More machines, more bottles(direct proportion)   More minutes, more bottles(direct proportion)   ⇒ 6 × 1 × x = 10 × 4 × 270   ⇒ x = (10 × 4 × 270)/6 = (10 × 4 × 90)/2 = 10 × 4 × 45 = 1800. 1800nswer : Option 1800
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Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?