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# Aptitude and Reasoning

## TIME,WORK AND PIPES

If the person ‘A’ can do the work in ‘x’ days, then his one day’s work = 1/x

If the person ‘B’ can do the same work in ‘y’ days, then his one day’s work = 1/y

(A + B)’s one day work = 1/x +1/y

Total work done by A + B = Product of x & y / Sum of x & y =  x×y / x+y

Total work done by A or B = Product x & y/ Difference of x & y =  x × y  / x − y

Standard formula:

(M1 D1 H1) / W1 = (M2 D2 H2) / W2
Here,
M = Man/Woman/Boy/Girl/
D =Days
H = Hours
W = Capacity/Efficiency

TIME

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