Assessments
Question 50
There are 128 cubes with me which are coloured according to two schemes. 64 cubes each having two red adjacent faces and one yellow and other blue on their opposite faces while green on the rest. 64 cubes each having two adjacent blue faces and one red and other green on their opposite faces, while red on the rest. The cubes are then mixed up. How many cubes have two adjacent blue faces?