Current x is 2.5 a and runs for 39 seconds. current y is 3.8 a and runs for 24 seconds.
which current delivered more charge, and how much more charge did it deliver?
x delivered 97.5 c more than y.
x delivered 6.3 c more than y.
y delivered 91.2 c more than x.
y delivered 1.3 c more than x.

We have to recall that current is the amount of charge flowing through an object over a period of time. Mathematically, we have



where Q is the charge, I is the current, and t is the time.

Now, given that Current X has a value of 2.5A which ran for 39 seconds, the total amount of charge delivered is equal to 2.5(39) = 97.5 C.

Similarly, Current Y delivered 3.8A(24) = 91.2 C.

Comparing the charges delivered by the two currents, we see that X delivered (97.5 - 91.2) = 6.3 C more than Y.

 X delivered 6.3 C more than Y