A rope is 21 by 2 metres long how many pieces can be cut from the rope if each piece is to be 3 by 4 metre.

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Solution

Dear student,

$L e n g t h o f r o p e = \frac{21}{2} m L e n g t h o f e a c h p i e c e = \frac{3}{4} m N o . o f p i e c e s i t c a n b e c u t f r o m r o p e = \frac{21}{2} \div \frac{3}{4} = \frac{21}{2} \times \frac{4}{3} = \frac{7}{1} \times \frac{2}{1} = 14$

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