| Amount in HKD' | |
| Quantity '000 | 240 |
| Retail | A |
| Wholesale | B |
| Sales | 71,874 |
| Retail | 59,770 |
| Wholesale | 12,104 |
| Cost of Sales | 27,979 |
Given:
wholesale price is 5/7 of retail price
Cost of each unit in wholesale and retail are the same.
Boss: What is the quantity sold in retail and wholesale??
Tips: It can reduced done to one formula.
連續兩日都遇到咁既數學難題....真係估都估唔到。
死等你重話學咁多數學，番工無用!!
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