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: an employer pays rs . 20 for each day a worker works and for felts rs . 3 for each day is ideal at the end of sixty days a worker gets rs . 280 . for how many days did the worker remain ideal ?
Options: a ) 10 , b ) 40 , c ) 30 , d ) 20 , e ) 50

SOLUTION: b

PROBLEM: Problem: a boat covers a certain distance downstream in 1 hour , while it comes back in 1 hours . if the speed of the stream be 3 kmph , what is the speed of the boat in still water ?
Options: a ) 12 kmph , b ) 13 kmph , c ) 14 kmph , d ) 15 kmph , e ) none

SOLUTION: d

PROBLEM: Problem: one hour after yolanda started walking from x to y , a distance of 60 miles , bob started walking along the same road from y to x . if yolanda a s walking rate was 5 miles per hour and bob a s was 6 miles per hour , how many miles had bob walked when they met ?
Options: a ) 40 , b ) 25 , c ) 28 , d ) 30 , e ) 30.5

SOLUTION:
d