Tips and Ticks Time and Work Problems - Shortcut Tricks and Formulas


Tips and Ticks Time and Work Problems - Shortcut Tricks and Formulas

Problems Type 1:

A can finish work in X days.

B can finish work in Y days.


Both can finish in Z days = (X*Y) / (X+Y).


Problems Type 2:

Both A and B together can do work in T days.

A can do this work in X days.


then, B can do it in Y days = (X*T) / (X-T)


Problems Type 3:

A can finish work in X days.

B can finish work in Y days.

C can finish work in Z days.


Together they can do work in T days = (X*Y*Z)/ [(X*Y)+(Y*Z)+(X*Z)]


Problems Type 4:

A can finish work in X days.

B can finish work in Y days.


A*X = B*Y

Y = (A*X) / B


Problems Type 5:

A can finish work in X days.

B can finish work in Y days.


A left work after P days then B need to work Q days

Q = [(X - P) / X ] * Y

Problems Type 6:

M1 person can do W1 work in D1 days and H1 hours

M2 person can do W2 work in D2 days and H2 hours


M1D1H1 = M2D2H2

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Tricks and Tips for Boat and Stream type Questions

Shortcut tricks on boats and streams are one of the most important topics in exams. These are the formulas and examples on Boats and Streams (Cyclist and the wind or Swimmer and stream) questions. These examples will help you to better understand shortcut tricks on boats and streams questions.


There are multiple types of questions asked from these topics. The speed of the boat in still water and the speed of stream will give in questions, You have to find the time taken by boat to go upstream and downstream. .
The speed of the boat in up and down stream will give in question,  you need to find the average speed of the boat.
The speed of boat to go up or down the stream will give in question, you need to find speed of boat in still water and speed of stream.
The time taken by boat to reach a place in up and downstream will given in question, you need to find the distance to the place.

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Tips to remember branch of study

പുഴ ക്കരയിൽ കളിച്ചുകൊണ്ടിരുന്ന കുട്ടിയുടെ പുഴയിൽ നഷ്ടപ്പെട്ട ചെരിപ്പിന് വേണ്ടി ഒരച്ഛൻ നടത്തിയ പുഴ യെക്കുറിച്ചുള്ള രോധനപഠനം : പോട്ടമോളജി .


മാർക്കറ്റിൽ ഷോപ്പിങ്ങിന് പോയി ബില്ലടയ്ക്കാൻ നേരം കാർഡെടുത്തില്ലെന്നറിഞ്ഞ്‌ അറ്റാക്ക്‌ വന്ന് വടിയായ ഒരു ഹൃദ്രോഗിയുടെ ഹൃദയത്തെക്കുറിച്ചുള്ള പഠനം : കാർഡിയോളജി .


വിഷന്ന് വലഞ്ഞ ഒരച്ഛന്റെ മുമ്പിലേക്ക്‌ പുളിച...

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Average calculation

N = the number of terms  .

S = the sum of the numbers in the set.

Average = S/N .


For example.

The marks of a student in five subjects are 96, 94, 92, 87, and 81, then what is the average score of the student?.

N = 5.

S = 96 + 94 + 92 + 87 + 81 = 450.

A = 450/5 = 90.


Another type questions .

1). There are 36 boys and 44 girls in a class. The average score of boys is 40 and girls are 35. Then what will be the average mark? .


Total mark of 36 boys = 36 x 40 = 1440.

Total mark of 44 girls = 35 x 44 = 1540.

Total mark of 80 Students = 1440 + 1540 = 2980 .

Average mark of the class = (2980 / 80).

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