Car factory

The carmaker now produces 2 cars a day more than last year, so the production of 70312 cars will save just one full working day. How many working days were needed to manufacture 70312 cars last year?

Correct answer:

w =  188 d

Step-by-step explanation:

(x+2) (w1)=70312 w x = 70312  (70312/w+2) (w1)=70312  (70312+2 w) (w1)=70312 w  (70312+2 w) (w1)=70312 w 2w22w70312=0 2 ...  prime number 70312=23111747 GCD(2,2,70312)=2  w2w35156=0  a=1;b=1;c=35156 D=b24ac=1241(35156)=140625 D>0  w1,2=2ab±D=21±140625 w1,2=21±375 w1,2=0.5±187.5 w1=188 w2=187  w=w1=188 x1=70312/w=70312/188=374 a/d w=w1=188=188 d

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