Solve this : 13) A candle making machine used 9 kg of wax in 2 hours. How much wax is used in 7 hours ? Share with your friends Share 0 Ayushi Chaurasiya answered this Dear Student,In 2 hours , 9kg of wax was used.⇒In 1 hour , 92kg of wax will be used⇒In 7 hour , 92×7 = 31.5 kg of wax will be used.Regards 0 View Full Answer
