In this task, you need to provide the correct option for a given problem from the provided options.

[Q]: Problem: what is the square root of 5,625 ? 
Options: a ) a ) 18 , b ) b ) 75 , c ) c ) 45 , d ) d ) 62 , e ) e ) 81
[A]: b


[Q]: Problem: if w is the set of all the integers between 19 and 99 , inclusive , that are either multiples of 3 or multiples of 2 or multiples of both , then w contains how many numbers ? 
Options: a ) 26 , b ) 32 , c ) 33 , d ) 34 , e ) 54
[A]: e


[Q]: Problem: a 40 kg metal bar made of alloy of tin and silver lost 4 kg of its weight in the water . 10 kg of tin loses 1.375 kg in the water ; 5 kg of silver loses 0.375 kg . what is the ratio of tin to silver in the bar ? 
Options: a ) 1 / 4 , b ) 2 / 5 , c ) 1 / 2 , d ) 3 / 5 , e ) 2 / 3
[A]:
e