Carrington used 3/4 of the 1/2 of an hour allotted for an exam to do the first 3 problems. How much time does he have left for the remaining part of the exam?

Question

asked Jun 26, 2020 143k views

1 Answer

James Jones · Answer 1 · 2020-07-02T11:09:46+0000

Answer:
$(1)/(8)~\textup{hour}$ left for the remaining part of the exam.

Step-by-step explanation: Given that Carrington used
(3)/(4) of the
(1)/(2) of an hour allotted for an exam to do the first 3 problems.

We are to calculate the time that he has left for the remaining part of the exam.

We have

Total time used i the first three problems is given by

$(3)/(4)* (1)/(2)=(3)/(8)~\textup{hour}.$

Therefore, the time left to complete the remaining part of the exam will be

$T_r=(1)/(2)-(3)/(8)=(4-3)/(8)=(1)/(8)~\textup{hour}.$

Thus,
$(1)/(8)~\textup{hour}$ left for the remaining part of the exam.