A ribbon 27 1/2 metre long is cut into equal pieces measuring 2 3/4 metre each. in how many pieces has the ribbon been cut into?

Length of each piece cut off from it = $2\frac{3}{4}m=\frac{11}{4}m$

Number of such pieces = $\frac{\mathrm{Total}\mathrm{length}\mathrm{of}\mathrm{ribbon}}{\mathrm{Length}\mathrm{of}1\mathrm{piece}}=\frac{{\displaystyle \frac{55}{2}}}{{\displaystyle \frac{11}{4}}}=\frac{55}{2}\times \frac{4}{11}=5\times 2=10$

Number of pieces are 10.

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