question_answer

Thomas have some cards of different colours. There are some particular number of cards of each colour. The number of differently colour cards are in A.P. If he has cards of seven different colours in the order of VIBGYOR such that the number of cards of third colour is four times the number of cards of first colour. If the number of sixth colour cards is 17, then the number of fifth colour cards is:

A)  14       

B)  16

C)  12                               

D)  10

E)  None of these