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 can do a piece of work in 4 hours ; b and c together can do it in 2 hours , while a and c together can do it in 2 hours . how long will b alone take to do it ?
Options: a ) 12 , b ) 9 , c ) 8 , d ) 6 , e ) 4

SOLUTION: e

PROBLEM: Problem: there are two tanks a & b with same capacity of 20 litres . if the water inflow rate ( speed ) in tank a is 2 litres per hour & in tank b is 4 litres per hour . how much longer tank a takes to fill than tank b ?
Options: a ) 4 hours , b ) 5 hours , c ) 3 hours , d ) 2 hours , e ) 1 hour

SOLUTION: b

PROBLEM: Problem: tim and e lan are 60 miles away from one another . they are starting to move towards each other simultaneously , tim at a speed of 10 mph and e lan at a speed of 5 mph . if every hour they double their speeds , what is the distance that tim will pass until he meets e lan ?
Options: a ) 30 miles . , b ) 35 miles . , c ) 40 miles . , d ) 60 miles . , e ) 65 miles .

SOLUTION:
c