A shopkeeper sells two qualities of rice at the rates of $42 per kg. and $27.5 per kg, gaining 20% and 10% profit respectively. If he mixes the two variants in the ratio 3:2 and sells the mixture at $35.65 per kg., what is his gain or loss?
A cuboid has width 4 units, height 8 units and length 11 units. If you had to construct a cube of integer sides that had a larger volume than the cuboid, what would the length of the edge of the cube be?
The graph below shows the production of bikes (in thousands) of two factories (A and B) for ten years. Find the combined production of bikes of two factories in the year when combined production of bikes was minumum.