what nimber should be divided by 0 81 1 2 to give the result as 81 a 9 b 81

LET THE NUMBER BE X......
X/(.81^1/2)=81
OR
X/squarerootof(81/100)=81
X/(9/10)=81
OR
X=81*(9/10)
X=729/10
OR
X=72.9
option c
This is d easiest explanation........
9 years agoHelpfull: Yes(17) No(0)
(o.81)^1/2=0.9
let the number be x.
x/0.9=81
by solving this x=72.9
so option c is correct.
9 years agoHelpfull: Yes(2) No(0)
c.72.9 will b ans.
9 years agoHelpfull: Yes(1) No(0)
0.81^1/2=0.9
7 years agoHelpfull: Yes(1) No(0)
ans 72.9
square(0.81) we get 0.9
so we 72.9/0.9
9 years agoHelpfull: Yes(0) No(1)
Can any one.send me capgemini placement papers to abidshaik345@gmail.com
9 years agoHelpfull: Yes(0) No(2)
ans(c) 72.9
x/(81/100)^1/2=81
x/9/10=81
10x/9=81
x=729/10
x=72.9
8 years agoHelpfull: Yes(0) No(0)
x=81*(0.81)^0.5
x=81*((81/100)^(5/10))
x=81*((81/100)^(1/2))
x=81*(9/10)
x=729/10
x=72.9
8 years agoHelpfull: Yes(0) No(0)
[(0.81)^1/2]=(0.9)

x/(0.9)=81
x=81*0.9
x=72.9
5 years agoHelpfull: Yes(0) No(0)

what nimber should be divided by (0.81)^1/2 to give the result as 81?

a.9
b.81
c.72.9
d.0.9