The value of 13.7 × 12.7 × 0.8 is

139.192

13.7 × 12.7 × 0.8 = 139.192

Alternate way to find answer:

Best way is : eliminate the options

(1) Answer should be in three decimal points, it means option (i) and (ii) eliminated.

(2) check product of unit digits i.e. 7 × 7 × 8 = 2, it means 2 will be the unit digit of the number, therefore, option (iv) eliminated.

Hence correct answer is option (iii)