IntermediateMathematics
Arithmetic · Productivity
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12 puzzles in this collection
Productivity
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Productivity
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Someone wants to grind 81 quarters of grain. In what shortest time can he grind
The tank holds 60 liters of water. Two pipes are connected to it. Through the fi
Grinding grain on three millstones
Tap and drain filling the tank
Two snowblowers, one breaks down
Holmes and Watson digging a ditch
Three stamping presses completing an order
Three tractor brigades plowing a field
Ivan, Peter and Kirill mowing grass
Four imps drawing in black ink
Three canal army men digging a ditch
Exact Science - Problem of The Day - 6