Answer:
69
Step-by-step explanation:
Set A = 52 elements, set B = 46 elements, A intersection B = 29 elements.
A only = 52 - 29 = 23
B only = 46 - 29 = 17
Total number of elements in either set A or set B = number of elements in A only + number of elements in B only + number of elements in A intersection B
= 23 + 17 + 29
= 69 elements
Hence, the total number of elements in either Set A or Set B is 69