MATH TRICKS , TIME AND WORK Trick, Shortcut tricks

TIME AND WORK

Time and work most important topic for all competitive examination.In Railway Examinations (ALP ,NTPC ,JE and Group D) we get 3-4 questions based on this topic.Solving these type of questions are time taking and time is very valuable.So i am here with all types of questions based on it .Use this trick to solve any type of question in seconds.

Lets have a look how questions are solved normally,its really lengthy and time consuming.

See Example 1(Solved by Trick) 

Normally this question is difficult to solve but those who are BEGINNERS and want to crack this exam use this trick.We can use this trick in any type of question based on TIME AND WORK.See how to solve questions with this trick below.I am also going to tell you how to and where to use this trick.This TRICK is also helpful in PIPE AND CISTERN.

TYPES OF QUESTIONS ON TIME AND WORK

 

See the images above question no1-6.These are the questions made on TIME AND WORK.

HOW TO USE THIS TRICK?

• Important thing you need to remember is .

       WORK=TIME*EFFICIENCY

• Always take the LCM of days i.e

Q    If A is doing a work in 12days and B in 24 days ,how much time they take to finish the work together .

An.   Now take LCM of 12 and 24 which is 24,

         now take 24 as a total work.

         

         Efficiency =Work/time. 

         

          so efficiency of A is 2 and B is 1.

         so they both take=2+1=3 efficiency.

         Now divide 3 by 24(Total Work)

         now ans is 24/3=8days

         See the questions in images to get better idea.

Always remember the formulae given above.This trick may solve question in just 20-25 seconds, There is no trick better than this trick.Once you start using this trick you may see your speed is increasing.This is benificical in all Competitive Examinations.RRB GROUP D ,RRB ALP ,RRB JE,RRB NTPC,RPF.Practice these questions ,trick is also helpful in PIPE AND CISTERN  

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