What is the remainder when 750*810*830*790 is divided by 13?
Choose the correct answer.
A) 4
B) 9
C) 10
D) 8
E) 6
OA is 'C'.   OE:   take the remainder from each of 750/15, 810/15 and so on..   750/13 gives remainder = 9   810/13 gives remainder = 4   830/13 gives remainder = 11   790/13 gives remainder = 10   the net remainder is the product of above individual remainders. i.e = 9*4*11*10   break them into pairs 9*4/13 gives remainder 10   and 11*10/13 gives remainder 6   so 10*6/13 gives remainder 8.   Answer: 10
<result>C</result>
What is the remainder when 750*810*830*790 is divided by 13?