TASK DEFINITION: In this task, you need to answer the given multiple-choice question on the physics. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
PROBLEM: Problem: the curved surface of a sphere is 64 π cm 2 . find its radius ? 
Options: ['a ) 8', 'b ) 3', 'c ) 4', 'd ) 9', 'e ) 7']

SOLUTION: c

PROBLEM: Problem: a factory produces 4560 toys per week . if the workers at this factory work 4 days a week and if these workers make the same number of toys everyday , how many toys are produced each day ? 
Options: a ) 1140 toys , b ) 2375 toys , c ) 3375 toys , d ) 4375 toys , e ) 5375 toys

SOLUTION: a

PROBLEM: Problem: if 9 men do a work in 80 days , in how many days will 20 men do it ? 
Options: a ) 18 days , b ) 36 days , c ) 42 days , d ) 48 days , e ) 44 days

SOLUTION:
b