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Question: : If a spaghetti machine makes 2m spaghetti in 1 turn of a handle, how many turns does it take to make 110cm? |
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| Answer: A suggested method of working is as follows: (2m = 200cm) 200 cm of spaghetti is produced by 1 turn So 1 cm of spaghetti is produced by 1/200 of a turn (1 divided by 200) Therefore 110 cm of spaghetti is produced by 1/200 x 110 = 11/20 or 0.55 of a turn {A reverse check is as follows: 110 cm of spaghetti is produced by 0.55 turn So 1 cm of spaghetti is produced by 0.55/110 Therefore 200 cm of spaghetti is produced by 0.55/110 x 200 = 1 turn (This was where we started out)} |
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