a)  The smallest area U.K.2,42,400 Km

b) The Largest area is Russia 17,098,242

c) The difference between Russia and China  17,098,242-9,598,095 = 7,500,148

d) Total Area of countries 49,839,760

e) Largest to smallest  17,098,242/ 9,984,670/ 9,629,091/9,598,094/3,287,263/2,42,400
    Russia, Canada, USA, China, India  and U.K