If CAFE is coded as 3165 and HIDE is coded as 8945, how will you encode HEAD?

Solution: 1

The letters are coded as per their serial nos. in English dictionary:-

C = 3, A = 1, F = 6, E = 5

H= 8, I = 9, D = 4, E = 5

So for HEAD, H = 8, E = 5, A = 1, D = 4

Hence, 8514 is the answer.