The task is to generate the correct answer for a given math problem.
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Question: Problem: a shopkeeper loses 15 % , if an article is sold for rs . 102 . what should be the selling price of the article to gain 20 % ?

Answer: rs . 144

Question: Problem: a is twice as good a workman as b and they took 6 days together to do the work b alone can do it in .

Answer: 18 days

Question: Problem: two years ago , ram put $ 500 into a savings account . at the end of the first year , his account had accrued $ 100 in interest bringing his total balance to $ 600 . the next year , his account balance increased by 10 % . at the end of the two years , by what percent has ram ' s account balance increased from his initial deposit of $ 500 ?

Answer:
32 %