Question

Suppose you drive to a picnic spot at 20 mph,then how fast you must go while returning back home on the same route such that your average speed becomes 40 mph ?
Brain Teaser

Answer 1

oh you and all your brain teasers :D

Answer 2

40 is total so

Answer 3

Brain teasers are really fun

Answer 4

start with 20 :O_O O_O ^_^

Answer 5

then what ?? :P:D

Answer 6

can i ask one brain teaser question ??

Answer 7

Sure go ahead

Answer 8

1+1 = 11
how

Answer 9

60 mph?

60+20=80

80/2=40?

lol it looks simple when i do it like that

Answer 10

if you don't know then ask me HOW ? :) ;)

Answer 11

i dont have a clue

Answer 12

maybe the guy thought adding numbers was just to combine

Answer 13

and put them together

Answer 14

@tbing5 wbu shamart :)