In a certain code language, ‘RIVER’ is written as ’10-3-5-2-10′ then how will ‘PETROL’ be written in the same code language

In a certain code language, ‘RIVER’ is written as ’10-3-5-2-10′ then how will ‘PETROL’ be written in the same code language?

(a) 11-2-7-10-13-16

(b) 13-5-8-9-4-15

(c) 12-2-8-10-13-15

(d) 12-2-8-10-4-16

Sol:

A E I O U

1 2 3 4 5

E=2

0=4