Darius needs to solve 45 math problems for his homework assignment. He already completed 15 of the problems in morning study hall. He then worked from 3:15 to 4:30 to
complete the remainder of the problems. How many minutes does it take Darius to complete one problem?
Answer
A) 2/5 minute
B) 1 1/4minutes
С) 1 2/3minutes
D) 2 1/2minutes

its C because 3;15 through 4:30 is already a 1hr and is you subtract 3-1 is gonna give you 2 but if that not enough i best advise to elimanate a and d

Answer Link

absor201 absor201 · Answer 2 · 2020-12-08T18:55:48+01:00

Answer:

Option D: [tex]2\frac{1}{2}[/tex] minutes is the correct answer.

Step-by-step explanation:

Given that:

Darius needs to solve 45 math problems. He as already solved 15 problems.

Remaining problems to be solved = Total - Already solved

Remaining problems = 45-15 = 30 problems

Time worked = 3:15 to 4:30 = 75 minutes

Darius have 75 minutes to solve 30 problems.

Time for one problem = [tex]\frac{remaining\ problems\ to\ solve}{time\ worked}[/tex]

Time for one problem = [tex]\frac{75}{30} = \frac{5}{2}\ minutes[/tex]

Time for one problem = [tex]2\frac{1}{2}\ minutes[/tex]

It takes Darius [tex]2\frac{1}{2}[/tex] minutes to complete one problem.

Hence,

Option D: [tex]2\frac{1}{2}[/tex] minutes is the correct answer.