In this task, you need to provide the correct option for a given problem from the provided options.
--------
Question: Problem: a number is increased by 11 % and then reduced by 10 % . after these operations , the number : 
Options: a ) does not change , b ) decreases by 1 % , c ) increases by 1 % , d ) increases by 0.1 % , e ) none of these

Answer: b


Question: Problem: how many factors of 220 are odd numbers greater than 1 ? 
Options: a ) 3 , b ) 4 , c ) 5 , d ) 6 , e ) 7

Answer: a


Question: Problem: find the fraction which has the same ratio to 1 / 2 that 2 / 5 has to 3 / 7 
Options: a ) 1 / 2 , b ) 2 / 12 , c ) 14 / 30 , d ) 3 / 8 , e ) 7 / 9

Answer:
c