A tailor had a number of shirt pieces to cut from a roll of fabric. He cut each roll of equal length into 12 pieces. He cut at the rate of 40 cuts a minute. How many rolls would be cut in 30 minutes ?  Choose the correct choice.
A) 212  B) 137  C) 107  D) 109  E) 281
Number of cuts made to cut a roll into 12 pieces = 11.   Therefore, required number of rolls = (40 x 30)/11 = 109.   Answer: 109) 109 rolls
<result>D</result>
A tailor had a number of shirt pieces to cut from a roll of fabric. He cut each roll of equal length into 12 pieces. He cut at the rate of 40 cuts a minute. How many rolls would be cut in 30 minutes ?