The workman had a pile of sand at the playground. He used 3/8 of it for the sandpit. He then used 4/5 of the remainder for the flower bed. He had 50 kilograms of sand left. How many kilograms of sand were in the pile at first?
Opening the drawing…
MathBrush is being tested with a few parent groups, and every solution on the site is open to them. If you were given a code, it goes in once and this device remembers it. 65 worked examples are free to everyone without one.