Question

Determine the sum of the four number 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.
[4 MARKS]

Answer 1

Each Option: 0.5 Marks
Answer: 2 Marks

a) Successor of 32=32+1 =33
b) Predecessor of 49 = 49 -1 =48
c) Predecessor of 56 = 56 -1 =55
Predecessor of 55 = 55 -1 =54
$\therefore$ Predecessor of predecessor of 56 =54
d) Successor of 67 = 67 +1 = 68
and successor of 68 = 68 +1 = 69.
$\therefore$ Successor of successor of 67 = 69.
$\therefore$ Required sum = 33 + 48 + 54 + 69 = 204