weewee SG There were 2 identical flights of steps. For the 1st flight of steps, James walked up some steps and ran 6 steps in 74s. For the 2nd flight of steps, James walked up some steps and ran 14 steps in 42s. How long will James take to walk up both flights of steps?(I copied the stuff exactly word for word and double checked already)Ans is 196s
DailyFreeGames.com SG x - 6 = 74s x - 14 = 42s(x - 6) + (x - 14) = 116s 2x - 20 = 116s x - 10 = 58s (1 flight of steps)(x - 6) - (x - 14) = 32s 8 = 32s 1 = 4s For every step run, it saves 4s.Therefore...x = 58s + 10 steps x = 58s + (10 * 4s) x = 58s + 40s x = 98s (1 flight of steps took 98s to climb) 2x = 196s
uponAStaR SG another method but same concept as the previos method. I think this will be easier for a P6.running 8steps(14-6)=save 32s(74-42)running 1step = save 4srunning 6steps = 6x4 =24swalking 1 flight = 74+24 = 98sboth = 98x2=196s