Performance

Two masons with the same performance would have been made of plaster for six days. One of them, however, has increased its daily performance by 50%. How long would it take them now to make plaster together?

Correct answer:

t =  4 d

Step-by-step explanation:

a=2 6=12 d b=2 6=12 d b1=b10050 b=1210050 12=6 d  t=1/a+1/b11=1/12+1/61=4 d



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