If in a certain language GOLDSMITH is coded as 967853421 & SMOOTH is coded as 536621.
How is MOLDIT coded in that language?

Correct option is D

Given : 
GOLDSMITH → 967853421
SMOOTH → 536621

Solution :
Mapping Letters to Digits : G=9,O=6,L=7,D=8,S=5,M=3,I=4,T=2,H=1
M=3,O=6,L=7,D=8,I=4,T=2
MOLDIT=367842
Thus the correct answer is (d) 267842