Score: 25/25

Questions I struggled with

Question	Explanation
A binary number is to be transformed by appending three 0s to the end of the number. For example, 11101 is transformed to 11101000. Which of the following correctly describes the relationship between the transformed number and the original number? A: The transformed number is 8 times the value of the original number.	At first I thought the new number would only be 4 times the original because the the 2^0 place would'nt have any affect. But no, the effect it has is still 2^3
The owner of a clothing store records the following information for each transaction made at the store during a 7-day period. The date of the transaction The method of payment used in the transaction The number of items purchased in the transaction The total amount of the transaction, in dollars Customers can pay for purchases using cash, check, a debit card, or a credit card. Using only the data collected during the 7-day period, which of the following statements is true? A: The total number of items purchased on a given date can be determined by searching the data for all transactions that occurred on the given date and then adding the number of items purchased for each matching transaction.

Question

Explanation

A binary number is to be transformed by appending three 0s to the end of the number. For example, 11101 is transformed to 11101000. Which of the following correctly describes the relationship between the transformed number and the original number?
A: The transformed number is 8 times the value of the original number.

At first I thought the new number would only be 4 times the original because the the 2^0 place would'nt have any affect. But no, the effect it has is still 2^3

The owner of a clothing store records the following information for each transaction made at the store during a 7-day period.

The date of the transaction
The method of payment used in the transaction
The number of items purchased in the transaction
The total amount of the transaction, in dollars
Customers can pay for purchases using cash, check, a debit card, or a credit card.

Using only the data collected during the 7-day period, which of the following statements is true?

A: The total number of items purchased on a given date can be determined by searching the data for all transactions that occurred on the given date and then adding the number of items purchased for each matching transaction.

Questions I found easier

Compared to previous times, the questions asked about what would be then nevt binary number, were much easier.

Questions I have

I am not sure if I am taking too much time on the binary questions. Usually what I do is convert the given binary value to decimal, and then do the same for each anser choice until I get the decimal value I need. Is there a better way to approach these questions?

Overall

I am getting better at understanding the information and vocabulary. Now I need to improve my speed.