69
google search
Google search results:
1: https://www.toppr.com/ask/en-us/question/a-man-can-do-a-piece-of-work-in-5-days-but-with-the-help/
++++++++++++++++
2: https://www.quora.com/A-man-can-do-a-piece-of-work-in-5-days-but-with-the-help-of-his-son-he-can-do-it-in-3-days-In-what-time-can-the-son-do-it-alone
++++++++++++++++
3: https://brainly.in/question/7627146
++++++++++++++++
4: https://testbook.com/question-answer/a-man-can-do-a-piece-of-work-in-5-days-but-with-t--60471961f8ca2ea760c497fd
++++++++++++++++
5: https://www.competoid.com/quiz_answers/14-0-4780/Question_answers/
++++++++++++++++
6: https://www.algebra.com/algebra/homework/Rate-of-work-word-problems/Rate-of-work-word-problems.faq.question.822092.html
++++++++++++++++
7: https://web.sites.google.com/c.sma4bone.my.id/2yuh
++++++++++++++++
8: https://ebible.org/kjv/Job.htm
++++++++++++++++
9: https://www.churchofjesuschrist.org/study/manual/old-testament-student-manual-kings-malachi/chapter-4?lang=eng
++++++++++++++++
10: https://courses.bfwpub.com/bh7e/ee_files/Developmental_Exercises_Pdfs/AnswerstoExercises.pdf
++++++++++++++++
11: https://books.google.com/books?id=yK0UAAAAYAAJ&pg=RA11-PT11&lpg=RA11-PT11&dq=A+man+can+do+a+piece+of+work+in+5+days,+but+with+the+help+of+his+son+he+can+do+it+in+3+days.+In+what+time+can+the+son+do+it+alone?%0AO+17/2%0AO+15/2%0AO+19/2%0AO+11/2&source=bl&ots=lcF_iBfJr2&sig=ACfU3U3iDfIeiWhjijbdcdCy4Z-MS5s_Yg&hl=en&sa=X&ved=2ahUKEwj7yuyG4N_yAhUGHM0KHVMZAW8Q6AF6BAgcEAM
++++++++++++++++