Some Basic Concepts of Chemistry Part 1

A reaction of 0.1 mole of benzylamine with bromomethane gave 23g of benzyl trimethyl ammonium bromide. The number of moles of bromomethane consumed in this reaction are n×10−1, when n=........ (Round off to the nearest integer).
(Given : Atomic masses: C=12.0u,H=1.0u, N=14.0u,Br=80.0u ]