In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

[EX Q]: Problem: divide rs . 1400 among a , b and c so that a receives 1 / 3 as much as b and c together and b receives 2 / 3 as a and c together . a ' s share is ?
Options: a ) 346 , b ) 368 , c ) 350 , d ) 337 , e ) 639
[EX A]: c

[EX Q]: Problem: a dishonest dealer claims to sell a product at its cost price . he uses a counterfeit weight which is 20 % less than the real weight . further greed overtook him and he added 15 % impurities to the product . find the net profit percentage of the dealer ?
Options: a ) 46.85 % , b ) 43.75 % , c ) 50 % , d ) 56.25 % , e ) 36 %
[EX A]: b

[EX Q]: Problem: how many times digit 20 is used while writing numbers from 100 to 500 ?
Options: a ) 20 , b ) 30 , c ) 15 , d ) 25 , e ) 20
[EX A]:
a