37 minutes
see previous solution for the explanation.
plz solve according to sequence and series pattern
a man was trying to swim to a buoy placed at a distance of 200m out in the sea. it took him 1 min to swim 20m. then a wave pushed him back 10m and he rested for about 1min before swimming again. he continued in his way for the rest of their journey. how long would it take the man to swim to the buoy?
4 answers
I have no idea what a sequence and series pattern involves, but surely you do. Try fitting Reiny's solution into your framework.
took me 40
http://www.jiskha.com/display.cgi?id=1420913304
http://www.jiskha.com/display.cgi?id=1420913304
At a rate of 5 m/min, after 36 minutes he has gone 180m. On the 37th minute he swims 20m and is done. No need to let go and float backwards again.