QUESTION 4
iii
Easy
A telecom company charges ₹600 for a certain recharge scheme. This prepaid balance is reduced by ₹15 each day after recharge. Make a table of values for x varying from 1 to 10 days and show how the balance b(x), reduces with time.
SOLUTION
| t (months) | h (height in feet) |
|---|---|
| 1 | 585 |
| 2 | 570 |
| 3 | 555 |
| 4 | 540 |
| 5 | 525 |
| 6 | 510 |
| 7 | 495 |
| 8 | 480 |
| 9 | 465 |
| 10 | 450 |
Balance decreases by ₹15 each day.
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Final Answer : Balance decreases by ₹15 each day.
Concept Note
The balance decreases by a constant amount(₹15) everyday, so this creates a steady, predictable decline over time which can easily be calculated.