Question

When ringing up a customer, a cashier needs 6 seconds to process payment as well as 1 second to scan each item being purchased. If it takes 20 seconds to ring up a customer, how many items are being purchased?

Answer 1

A cashier takes 6 seconds to process payment and 1 second to scan each item. If it takes 20 seconds to ring up a customer, then the customer is purchasing 14 items.

Step-by-step explanation:

The question asks us to find out how many items are being purchased by a customer if the total time taken to ring up a customer is 20 seconds, considering that the cashier needs 6 seconds to process payment and an additional 1 second to scan each item.

To solve this, we will subtract the fixed payment processing time from the total time and then divide the remaining time by the scanning time per item.

First, we subtract the payment processing time: 20 seconds total - 6 seconds for payment processing = 14 seconds left for scanning items.

Next, we divide the time left by the time taken to scan one item: 14 seconds ÷ 1 second per item = 14 items.

Thus, the cashier is processing a purchase of 14 items.