A company makes electronic gadgets. 3.5% are faulty, the company tests the gadget to find the faulty ones which they then scrap. Suppose the company makes a $201 profit on each sale, but suffers a loss of $11 for every faulty gadget they scrap. What is the profit(or loss) the company can expect to make from producing 100 units?.

1 answer

To calculate the expected profit (or loss) from producing 100 units, we need to find out how many of these units are expected to be faulty, the profit from the non-faulty units, and the loss from scrapping the faulty units.

Step 1: Determine the number of faulty units.

The percentage of faulty gadgets is 3.5%. So, for 100 units:

\[ \text{Number of faulty units} = 100 \times 0.035 = 3.5 \]

Since we can't have a fraction of a unit in practical terms, we can expect either 3 or 4 faulty units. For expected profit calculations, we will use the average, which we'll round as appropriate later.

Step 2: Calculate the number of non-faulty units.

The number of non-faulty units is:

\[ \text{Number of non-faulty units} = 100 - \text{Number of faulty units} \]

If we use the average expected number of faulty units (3.5), then:

\[ \text{Number of non-faulty units} = 100 - 3.5 = 96.5 \]

Step 3: Calculate profit from non-faulty gadgets.

The profit per non-faulty gadget is $201. Therefore, the profit from the non-faulty gadgets is:

\[ \text{Profit from non-faulty units} = 96.5 \times 201 = 19351.5 \]

Step 4: Calculate loss from faulty gadgets.

The loss per faulty gadget is $11. The total loss from the expected number of faulty gadgets is:

\[ \text{Loss from faulty units} = 3.5 \times 11 = 38.5 \]

Step 5: Calculate total expected profit (or loss).

The total expected profit (considering the loss from faulty units) is:

\[ \text{Total expected profit} = \text{Profit from non-faulty units} - \text{Loss from faulty units} \] \[ \text{Total expected profit} = 19351.5 - 38.5 = 19313 \]

Conclusion

The expected profit the company can expect to make from producing 100 units is $19,313.