Question

Carrington used Three-fourths of the One-half 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?

One-eighth of an hour
StartFraction 3 Over 8 EndFraction of an hour
Two-thirds of an hour
Three-halves of an hour

Answer 1

1/8....

Step-by-step explanation:

Answer 2

One-eighth of an hour

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)`

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

Tr=
`(1)/(2)` -
`(3)/(8)`=
`(4-3)/(8)`=
`(1)/(8)` hour