In this task, you need to provide the correct option for a given problem from the provided options.

[EX Q]: Problem: there are 760 students in a school . the ratio of boys and girls in this school is 3 : 5 . find the total of girls & boys are there in this school ? 
Options: a ) 320 , b ) 345 , c ) 425 , d ) 475 , e ) 400
[EX A]: d

[EX Q]: Problem: divide rs . 32000 in the ratio 3 : 5 ? 
Options: a ) 12000 , 20000 , b ) 12000 , 200098 , c ) 12000 , 20007 , d ) 12000 , 20006 , e ) 12000 , 20001
[EX A]: a

[EX Q]: Problem: the probability of two events a and b are 0.15 and 0.40 respectively . the probability that both a and b occur is 0.15 . the probability that neither a nor b occur is _________ 
Options: a ) 0.45 , b ) 0.4 , c ) 0.5 , d ) 0.05 , e ) 0.6
[EX A]:
e