The largest number that exactly divides each number of the sequence
(15 - 1), (25 - 2), (35 - 3), ...., (n5 - n), ...... is	Choose the correct choice
A) 1	B) 15	C) 30	D) 120	E) None
Sol.   Required number = (25 - 2)   = (32 - 2)= 
<gadget id="calculator">(32 - 2)</gadget>
<output>30</output>
30.   Answer 30
<result>C</result>
The largest number that exactly divides each number of the sequence
(15 - 1), (25 - 2), (35 - 3), ...., (n5 - n), ...... is