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: a is twice as good a workman as b and together they complete a work in 12 days . in how many days a alone can do the work ?
Options: a ) 32 , b ) 33 , c ) 34 , d ) 35 , e ) 36

SOLUTION: e

PROBLEM: Problem: a searchlight on top of the watchtower makes 4 revolutions per minute . what is the probability that a man appearing near the tower will stay in the dark for at least 12 seconds ?
Options: a ) 1 / 2 , b ) 2 / 3 , c ) 1 / 3 , d ) 1 / 4 , e ) 1 / 5

SOLUTION: e

PROBLEM: Problem: a 400 meter long train crosses a platform in 45 seconds while it crosses a signal pole in 30 seconds . what is the length of the platform ?
Options: a ) 200 , b ) 400 , c ) 350 , d ) 1800 , e ) 45

SOLUTION:
a