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: Rs.8000 become Rs.11256 in a certain interval of time at the rate of 5% per annum of C.I. Find the time?

 Option A: 6 YEARS

 Option B: 7

 Option C: 5

 Option D: 3

 Option E: 4
Option B

Question: A person incurs 5% loss by selling a watch for $1140 . At
what price should the watch be sold to earn 5% profit?

 Option A: 1160

 Option B: 1150

 Option C: 1260

 Option D: 1260

 Option E: 1360
Option C

Question: I gain 70 paise on Rs.70. My gain percent is

 Option A: 0.1%

 Option B: 1%

 Option C: 7%

 Option D: 10%

 Option E: None

Option B