Ans 2:
Class : Class 2
Number of disks with value 10 = 5Total value of disks with value 10 = 5 x 10 = 50Number of disks with value 5 = 8Total value of disks with value 5 = 8 x 5 = 40Number of disks with value 1 = 8Total value of disks with value 1 = 8 x 1 = 8Total value of the disks = 50 40 8 = 98