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IgorC [24]
3 years ago
14

Darius needs to solve 45 math problems for his homework assignment. He already completed 15 of the problems in morning study hal

l. 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
Mathematics
2 answers:
AleksAgata [21]3 years ago
3 0

Answer:

its c

Step-by-step explanation:

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

scoray [572]3 years ago
3 0

Answer:

Option D: 2\frac{1}{2} 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 = \frac{remaining\ problems\ to\ solve}{time\ worked}

Time for one problem = \frac{75}{30} = \frac{5}{2}\ minutes

Time for one problem = 2\frac{1}{2}\ minutes

It takes Darius 2\frac{1}{2} minutes to complete one problem.

Hence,

Option D: 2\frac{1}{2} minutes is the correct answer.

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