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6. A carpenter made 5 similar tables in 12 h 30 min 15 sec.How long did it take him to make 1 table? |
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Answer» Time required to made 5 tables = 12 hr 30 min 15 sec= 12*60*60 + 30*60 + 15= 43200 + 1800 + 15= 45015 sec Then, time required to made one chair = 45015/5= 9003 sec = 7200 + 1800 + 3= 7200/3600 + 1800/60 + 3= 2 hr 30 min 3 sec |
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