Solve the Problem. -An Experienced Bank Auditor Can Check a Bank's Deposits Twice

question 53

Multiple Choice

Solve the problem.
-An experienced bank auditor can check a bank's deposits twice as fast as a new auditor. Working together it takes the auditors 4 hours to do the job. How long would it take the experienced auditor working alone?

• A)4 hr
• B)6 hr
• C)8 hr
• D)12 hr