Algebra - odd natural numbers

13

so ur ans is 900

options given are.... 300,330,325,350

1

abhi dear is da 325? = 26C2

tell me if its rite, then i'll give da reasonin

3

oops asish it was given as odd natural nos not no of integral solns.

106

Asish Mahapatra ·2009-02-26 16:59:14

it is given x₁,x₂,x₃ are odd natural numbers.
Let x₁=2k₁+1, x₂=2k₂+1, x₃=2k₃+1 where k₁,k₂,k₃ are whole numbers

Now x₁+x₂+x₃=51
==> k₁+k₂+k₃=24

So, reqd. solution is ^24+3-1C_3-1 = ²⁶C₂ = 325

13

thanks bro....

odd natural numbers