Home » Aptitude » Decimal Fraction

4.2 x 4.2 - 1.9 x 1.9 is equal to: 2.3 x 6.1

Correct Answer: 1.0

Explanation:

Given Expression = (a2 - b2) = (a2 - b2) = 1.
(a + b)(a - b) (a2 - b2)

← Previous Question Next Question→

Discussion & Comments

No comments yet. Be the first to comment!
Join Discussion