Time and Work Problems - Shortcut Tricks and Formulas
Time and Work Problems - Shortcut Tricks and FormulasProblems 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
Code: FLASK OC .
F : Fathima Beevi .
First woman judge in supreme court.
L : Leela seth .
First woman chief justice in High court.
A : Annachandy .
First woman judge in High court.
S : Sujatha Manohar .
First woman chief justice in Kerala High court.
K : K.K usha .
First malayali woman to become chief justice in Kerala high court.
O : Omana Kunhamma .
First lady magistrate in India.
C : Cornilia Sorabji .
First woman advocate in India.
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The quickest way to calculate percentages is to multiply numbers first and handle two decimal places later.
For example, 20% of 70 is 20 x 70 = 1400, so the answer is 14. .
70% of 20 is also 14.
To calculate the percentage of 72 or 29, then round up and down to the nearest multiple (70 and 30 respectively) to get a quick approx result.
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Code: MBBS PAIN.
M: Malideep.
B: Bhutan.
B: Bengladesh.
S: Srilanka.
P: Pakistan.
A: Afganistan.
I: India.
N: Nepal.
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