Question

A simple question to kill the time#11

find 3+2+1+0.11+0.0011+0.000011=?
a.frac{45}{7} b.frac{55}{9} c.frac{67}{10} d.frac{79}{13}

Answer 1

a.45/7 b.55/9 c.67/10 d.79/13

Answer 2

whatever 6 + 1/9 is

Answer 3

yea easy.. use sum up to inifinity.. :D

Answer 4

LOL

Answer 5

i guess that would be b

Answer 6

correct :)

Answer 7

sum shmum
just recalled that
\[\overline{.1}=\frac{1}{9}\]

Answer 8

for an elaborate solution its

6+ 11( 1/100 + 1/10000 + 1/1000000 and so on)
the term inside bracket is a GP with a = 1/100 and r= 1/100.. so find sum upto infinity!