Workers

Ten workers must pave road street for 22 working days. After four days were for speeding up work, added two more workers.

a) After how many work days now workers complete the paved road?
b) How many working days does a total paved road take?

Correct answer:

a =  15
b =  19

Step-by-step explanation:


4/22 + a·12/(10·22) = 1
b = a + 4

1.2a = 18
a-b = -4

Row 2 - 1/1.2 · Row 1 → Row 2
1.2a = 18
-b = -19


b = -19/-1 = 19
a = 18/1.2 = 15

a = 15
b = 19

Our linear equations calculator calculates it.



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