40 hours is taken by a worker to do job for which time allowed is 50 hours. TZS 125 per hour is his daily rate.calculate the time rate nad piece rat?

To calculate the time rate, we need to divide the total amount earned by the total number of hours worked.

Total amount earned = 40 hours * TZS 125 per hour = TZS 5000

Time rate = Total amount earned / Total number of hours worked
Time rate = TZS 5000 / 40 hours = TZS 125 per hour

To calculate the piece rate, we need to divide the total amount earned by the total number of pieces produced. Since the worker completed the job in 40 hours instead of the allowed 50 hours, we can consider the job itself as one piece.

Piece rate = Total amount earned / Total number of pieces produced
Piece rate = TZS 5000 / 1 piece = TZS 5000 per piece

Therefore, the time rate is TZS 125 per hour and the piece rate is TZS 5000 per piece.

Time rate:

Since the worker took 40 hours to complete a job that was estimated to take 50 hours, his time rate is:

```
Time rate = Daily rate / (Time allowed - Time taken)
Time rate = TZS 125 / (50 - 40)
Time rate = TZS 125 / 10
Time rate = TZS 12.50 per hour
```

Piece rate:

The piece rate is the amount of money paid for each item produced. Since the worker did not produce any items, we cannot directly calculate the piece rate. However, we can estimate the piece rate if we assume that he would produce one item for every hour of work.

```
Estimated piece rate = Time rate - Time allowed
Estimated piece rate = TZS 12.50 - 50
Estimated piece rate = TZS 625 per item
```

Therefore, the time rate is TZS 12.50 per hour and the estimated piece rate is TZS 625 per item.