Answer:
                                     Office World Inc.
                                      Cash budget
                                        Amount in $
October                            469,375
.00   
November                        422,187.50
December                        255,312.5
0
Explanation:
The schedule of cash collections for each month will be as spelt out below; 25% of monthly sales, 25% * 75% of the monthly sales and 75% * 75% of the sales in the prior month.
Hence, Cash collection for 
October 
= 25% * $700,000 + 25% * 75% * $700,000 + 75% * 75% * $290,000
= $469,375
November
= 25% * $65,000 + 25% * 75% * $65,000 + 75% * 75% * $700,000
= $422,187.50
December
= 25% * $500,000 + 25% * 75% * $500,000 + 75% * 75% * $65,000
= $255,312.5
0