Customers receive rewards points based on the purchase type. • Grocery: 3 points per dollar spent • Travel: 2 points per dollar spent • Dining: 2 points per dollar spent • Other: 1 point per dollar spent Purchase Purchase type Total Rewards points A Grocery
200 400 C Dining
75 75 E Dining
40 80 G Grocery
20 60 Which purchase(s) contain errors? Select all that apply
The Crrect Answer and Explanation is:
Let’s verify each row against the rewards points rules:
Rewards Rules:
- Grocery: 3 points per dollar
- Travel: 2 points per dollar
- Dining: 2 points per dollar
- Other: 1 point per dollar
Row-by-Row Check:
A. Grocery: $50 × 3 = 150 ✅ Correct
B. Travel: $200 × 2 = 400 ✅ Correct
C. Dining: $100 × 2 = 200 ❌ Incorrect (given: 100)
D. Other: $75 × 1 = 75 ✅ Correct
E. Dining: $15 × 2 = 30 ✅ Correct
F. Other: $40 × 1 = 40 ❌ Incorrect (given: 80)
G. Grocery: $10 × 3 = 30 ✅ Correct
H. Travel: $20 × 2 = 40 ❌ Incorrect (given: 60)
❌ Purchases with Errors:
- C (Dining): Should be 200, not 100
- F (Other): Should be 40, not 80
- H (Travel): Should be 40, not 60
✅ Correct Purchases:
- A, B, D, E, G
✅ Final Answer:
C, F, and H contain errors.
📝 Explanation
The reward points system is based on multiplying the purchase total by a fixed points-per-dollar rate depending on the purchase category. This straightforward system should result in predictable and consistent point values. A discrepancy in the result suggests either a calculation error or a mislabeling of the purchase type.
To verify each transaction, we multiply the total dollar amount by the applicable rate:
- Grocery purchases earn 3 points per dollar.
- Travel and Dining each earn 2 points per dollar.
- Other earns 1 point per dollar.
In row C, the purchase is for $100 under Dining, which should yield $100 × 2 = 200 points. However, only 100 points are listed. This is clearly incorrect.
Row F, labeled as Other, shows a $40 purchase. At 1 point per dollar, the reward should be 40 points, not the listed 80. This suggests a duplication or miscategorization of points.
In row H, the Travel purchase of $20 should result in 20 × 2 = 40 points, yet 60 points are recorded. This is another miscalculation.
Identifying and correcting such errors is essential for maintaining customer trust and ensuring the integrity of rewards systems. These errors might seem minor, but repeated mistakes could undermine the credibility of a rewards program and lead to customer dissatisfaction. Proper checks and automation can help avoid such issues.
