Solve this :

13)  A candle making machine used 9 kg of wax in 2 hours. How much wax is used in 7 hours ? 

Dear Student,In 2 hours , 9kg of wax was used.In 1 hour , 92kg of wax will be usedIn 7 hour , 92×7 = 31.5 kg of wax will be used.Regards

  • -1
What are you looking for?