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: The radius of a cylinder is 8 m, height 14 m. The volume of the cylinder is:

 Option A: 2816

 Option B: 5500

 Option C: 3300

 Option D: 1100

 Option E: 4400
Option A

Question: A broker invested her own money in the stock market. During the first year, she increased her stock market wealth by 40 percent. In the second year, largely as a result of a slump in the stock market, she suffered a 30 percent decrease in the value of her stock investments. What was the net increase or decrease on her overall stock investment wealth by the end of the second year?

 Option A: −5%

 Option B: −2%

 Option C: 15%

 Option D: 20%

 Option E: 80%
Option B

Question: A classroom has equal number of boys and girls. TEN girls left to play kho-kho, leaving twice as many boys as girls in the classroom. What was the total number of girls and boys present initially?

 Option A: 16

 Option B: 24

 Option C: 32

 Option D: 48

 Option E: 40

Option E