# Math

posted by on .

A boy can rake a yard in 2.5 hours, his sister can rake it in 4 hours. How long will it take both of them to rake it?

• Math - ,

boy's rate = 1/2.5 or 2/5
sister's rate = 1/4

combined rate = 2/5 + 1/4 = 13/20

time at combined rate = 1/(13/20)
= 20/13 hrs or appr 1.54 hrs or 1 hour and 32 minutes
The text passage contains a word problem about two people raking a yard together, and it provides a solution to the problem.
single_question_with_answer
Given a text passage, determine:
    1. If it contains a mathematical question (including word problems or calculations)
    2. If an answer to that mathematical question is provided in the text

First, describe the content structure you found in 1-2 sentences.

Then provide your analysis in the following format:
TYPE: <one of the following values>
- NO_QUESTION
- SINGLE_QUESTION
- SINGLE_QUESTION_WITH_ANSWER
- MULTIPLE_QUESTIONS
- MULTIPLE_QUESTIONS_WITH_ANSWERS
system
# Math

posted by on .

A boy can rake a yard in 2.5 hours, his sister can rake it in 4 hours. How long will it take both of them to rake it?

• Math - ,

boy's rate = 1/2.5 or 2/5
sister's rate = 1/4

combined rate = 2/5 + 1/4 = 13/20

time at combined rate = 1/(13/20)
= 20/13 hrs or appr 1.54 hrs or 1 hour and 32 minutes
user
The text passage contains a word problem about two people raking a yard together, and it provides a solution to the problem.

TYPE: SINGLE_QUESTION_WITH_ANSWER