Decimal Fraction - General Aptitude

Q1:

5 x 1.6 - 2 x 1.4 = ?
1.3

A 0.4

B 1.2

C 1.4

D 4

ANS:D - 4

Given Expression = 8 - 2.8 = 5.2 = 52 = 4.
1.3 1.3 13