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: find a sum for 1 st 7 prime number ' s ? 
Options: a ) 25 , b ) 28 , c ) 58 , d ) 34 , e ) 36
[EX A]: c

[EX Q]: Problem: a , b and c play a cricket match . the ratio of the runs scored by them in the match is a : b = 2 : 3 and b : c = 2 : 5 . if the total runs scored by all of them are 75 , the runs scored by a are ? 
Options: a ) 11 , b ) 18 , c ) 13 , d ) 17 , e ) 12
[EX A]: e

[EX Q]: Problem: the population of locusts in a certain swarm doubles every two hours . if 4 hours ago there were 1,000 locusts in the swarm , in approximately how many hours will the swarm population exceed 32,000 locusts ? 
Options: a ) 2 , b ) 4 , c ) 6 , d ) 8 , e ) 9
[EX A]:
c