Correct Answer - Option 3 : 801
Concept:
100% = 1 (in fraction)
1 = 100% (in percentage)
\(8\frac{1}{3}\% = \frac{1}{{12}}\)
\(9\frac{1}{9}\% = \frac{1}{{9}}\)
\(37\frac{1}{2}\% = \frac{3}{{8}}\)
Calculation:
\(91\frac{2}{3}\% = 100\% - 8\frac{1}{3}\% \)
\(91\frac{1}{9}\% = 80\% +11\frac{1}{9}\% \)
now,
\(\left( {100\% - 8\frac{1}{3}\% } \right)of\;396 + \left( {80\% + 11\frac{1}{9}\% } \right)of\;270 + \frac{3}{8}\;of\;512 \)
⇒ \(\left( {1 - 1/12 } \right)of\;396 + \left( {4/5 + \frac{1}{9} } \right)of\;270 + \frac{3}{8}\;of\;512\)
⇒ (11/12) × 396 + (41/45) × 270 + (3/8) × 512
⇒ 11 × 33 + 41 × 6 + 3 × 64
⇒ 363 + 246 + 192 = 801
