Secrets Of The Millionaire Mind

A millionaire bought a lot of hats (1)/(4) of which were brown.The millionaire sold (2)/(3) of the hats including (4)/(5) of the brown hats.What fraction of the unsold hats were brown? (1)/(60) (b) (1)/(15) (c) (3)/(20)( d) (3)/(5)( e) (3)/(4)

Secret Reserves

The secretions of the brush border cells of the mucosa along with the secretions of the goblet cells constitute the