Answer:
The individual positive plate capacity is 85 Ah.
(D) is correct option.
Step-by-step explanation:
Given that,
Number of plates = 15
Capacity = 595 Ah
We need to calculate the individual positive plate capacity in motive power cell
We have,
15 plates means 7 will make pair of positive and negative.
So, there are 7 positive cells individually.
The capacity will be

Put the value into the formula


Hence, The individual positive plate capacity is 85 Ah.