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(a) 8 মিটার ও 10 মিটারের অনুপাত=8:10=\(\cfrac{8}{10}=\cfrac{80}{100}\)
(b) 4\(\frac{2}{5}\) এর 20%=\(\cfrac{22}{\cancel5}\times \cfrac{\cancel{20}4}{100}=\cfrac{88}{100}\)
\(\because 88\gt 80 \therefore \cfrac{88}{100}\gt\cfrac{80}{100}\)

\(\therefore\) (b) 4\(\frac{2}{5}\) এর 20% বড় ।