The task is to generate the correct answer for a given math problem.

[Q]: Problem: the marks obtained by vijay and amith are in the ratio 8 : 5 and those obtained by amith and abhishek in the ratio of 3 : 2 . the marks obtained by vijay and abhishek are in the ratio of ?
[A]: 12 : 5


[Q]: Problem: meena wrote all the numbers from 1 to 29,999 inclusive . how many digits did she write in total ?
[A]: 138,889


[Q]: Problem: the number of singles that a baseball player hit increased 10 percent from her first season to her second season , and the number of doubles that she hit in the same time period decreased by 1 percent . if the total number of singles and doubles that she hit increased 3 percent from her first season to her second season , what is the ratio of the number of singles she hit in her first season to the number of doubles she hit in her first season ?
[A]:
4 : 7