Given,

$\text{125\% of 605 +}\frac{4}{5}\mathrm{of}218=?$

It can be approximated as

$\text{125\% of 600 +}\frac{4}{5}\mathrm{of}200=?$

$= \frac{\text{125}}{100}\text{× 600 +}\frac{4}{5}\text{ × }200=?$

= 750+160

= 910 ≈ 931

Hence, option B is correct.