Vinay wlked 2 km to reach school.one day,he was sick,he walked with speed 20% less than before while going and returning.what was the percentage increase i n time,in the entire journey??

• if 1kmph was his daily speed, then 2km/1kmph=2 hours i.e;
  1kmph=2 hours then 20% less 0.8kmph=?
  1/0.8 * 2 = 2.5 hours. then % increase 0.5/2 * 100 =25%
• 13 years agoHelpfull: Yes(7) No(0)