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If a car traveing at an avrage speed of 48km/hr can finish a journey in 14 hours, how long it will take to complet the journy if the spped is increased by



Speed                                                    time       
48km/hr                                                  14hr 

48+18=66km/hr                                           ?
now cross multiply
                                     ____=77 divided by 4
0 0 0
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