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

Problem: find the simple interest on rs . 70,000 at 16 2 / 3 % per year for 9 months .
8750

Problem: a can do a piece of work in 22 days and b alone can do it in 10 days . b works at it for 5 days and then leaves . a alone can finish the remaining work in
11 days

Problem: two - third of a positive number and 144 / 216 of its reciprocal are equal . the number is :