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

Problem: at present , the ratio between the ages of shekhar and shobha is 4 : 3 . after 6 years , shekhar ' s age will be 26 years . find out the age of shobha at present ?
Options: a ) 10 , b ) 12 , c ) 14 , d ) 15 , e ) 20
d

Problem: in a college , the ratio of the number of boys to girls is 8 : 4 . if there are 200 girls , the total number of students in the college is
Options: a ) 420 , b ) 520 , c ) 600 , d ) 720 , e ) 820
c

Problem: a group of people participate in some curriculum , 30 of them practice yoga , 25 study cooking , 15 study weaving , 6 of them study cooking only , 8 of them study both the cooking and yoga , 7 of them participate all curriculums . how many people study both cooking and weaving ?
Options: a ) 1 , b ) 2 , c ) 3 , d ) 4 , e ) 5
d