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'.
--------
Question: 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

Answer: c


Question: Problem: cost is expressed by the formula tb ^ 4 . if b is doubled , the new cost is what percent of the original cost ? 
Options: a ) 200 , b ) 600 , c ) 800 , d ) 1600 , e ) 50

Answer: d


Question: Problem: how many positive integers less than 1960 are such that the product of their digits is 10 . 
Options: a ) 220 , b ) 230 , c ) 280 , d ) 220 , e ) 240

Answer:
c