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

Problem: bag a contains red , white and blue marbles such that the red to white marble ratio is 1 : 3 and the white to blue marble ratio is 2 : 3 . bag b contains red and white marbles in the ratio of 1 : 4 . together , the two bags contain 60 white marbles . how many red marbles could be in bag a ? 
Options: a ) 1 , b ) 3 , c ) 4 , d ) 12 , e ) 8
d

Problem: income and expenditure of a person are in the ratio 15 : 8 . if the income of the person is rs . 15000 , then find his savings ? 
Options: a ) 6999 , b ) 7000 , c ) 7001 , d ) 7002 , e ) 7003
b

Problem: if log 10 2 = 0.3010 , the value of log 10 80 is : 
Options: a ) 1.5252 , b ) 1.903 , c ) 3.9252 , d ) 3.903 , e ) 2.5252

b