Determine the sum of the four numbers as given below:

(a) successor of 32

(b) predecessor of 49

(c) predecessor of the predecessor of 56

(d) successor of the successor of 67

Successor of 32 = 32 + 1 = 33

Predecessor of 49 = 49 - 1 = 48

Predecessor of predecessor of 56 = predecessor of 56 - 1 = 56 - 1 - 1 = 54

Successor of successor of 67 = successor of 67 + 1 = 67 + 1 + 1 = 69

Hence, their sum,

= 33 + 48 + 54 + 69

= 204