Solve the Problem $5 \mathrm{hr}$ How Long Does It Take Each of Them Working

Multiple Choice

Solve the problem. Round your answer to the nearest tenth, if necessary.
-Ron takes two hr more time than Paul to mow the lawn. Working together they can mow the lawn in $5 \mathrm{hr}$ . How long does it take each of them working alone?

A) Paul: $10 \mathrm{hr}$ ; Ron: $12 \mathrm{hr}$
B) Paul: $9.1 \mathrm{hr}$ ; Ron: $11.1 \mathrm{hr}$
C) Paul: 8.3 hr; Ron: 10.3 hr
D) Paul: $8 \mathrm{hr}$ ; Ron: $10 \mathrm{hr}$