The answer = 3480
504 + 10% is not 840 so it must be a calculation error.
The answer is 4550
5.5% of 4800= 5.5% * 4800= 0.055 * 4800= 264
4800
840
The value of 4800 is 4800 and probability has nothing to do with it.
840
90% of 4800 = 4320= 90% * 4800= 90%/100% * 4800=43200/10= 4320
30% of 4800 = 144030% of 4800= 30% * 4800= 0.30 * 4800= 1440
27% of 4,800= 27% * 4800= 0.27 * 4800= 1,296
91% of 4,800 = 91% * 4800 = 0.91 * 4800 = 4,368