"Let us see if I am right. Proceed. Read me what you have written down."
"Let _x_ equal the number of rods he built each day," began Fifi
bravely.
"Proceed."
"Then _105_ divided by _x_ equals number of days consumed. And _105_
divided by _x - 2_ equals number of days consumed, if he had built _2_
rods less a day."
"Of course."
"And (_105_ ÷ _x - 2_) + _6_ = number of days consumed if it had taken
him six days longer."
"Nothing of the sort."