Question 1062617
A long wire of some length is cut into small pieces of 216 cm, leaves a small piece of length of 89 cm. If this part were cut into equal pieces each of 18 cm, then what is the length of the leftover wire?
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216 + 89 = 305 cm
305 = 16*18 + 17
17 cm left over.
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216 times any integer gives the same result, since 18 is a factor of 216.