instruction:
You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.
question:
Question: Rs.800 amounts to Rs.920 in 3 years at simple interest. If the interest is increased by 3%, it would amount to how much?

 Option A: Rs.1056

 Option B: Rs.1112

 Option C: Rs.1182

 Option D: Rs.992

 Option E: Rs.702
answer:
Option D


question:
Question: How many pieces of 0.85 metres can be cut from a rod 42.5 metres long?

 Option A: 30

 Option B: 40

 Option C: 50

 Option D: 60

 Option E: 70
answer:
Option C


question:
Question: In a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit?

 Option A: 60%

 Option B: 70%

 Option C: 80%

 Option D: 90%

 Option E: 100%
answer:

Option B