A rectangular sheet of cardboard 3 feet by 5 feet will be made into an open box by cutting equal-sized squares from each corner
and folding up the four edges. A diagram of the unfolded box is provided in figure, the shaded region represents the area that was cut from the corners of the box. What is the largest volume of such a box?
£1.60 each notebooks 3 pencils times 21p= 63p 2pens times 37p=74p 3sharpeners times 86p=258p 63p+74p+258p=£3.95 £8-3.95=£4.05 £4.05-£1.60= £2.45 £2.45-£1.60=85p So… he bought 2 notebooks