(0.29)2 - (0.01)2/0.3 = ?

• A. 0.30
• B. 0.28
• C. 0.34
• D. 0.32

Answer: (B)

a² - b² = (a + b)(a - b)Hence,(0.29)² - (0.01)²/0.3 = (0.29 + 0.01)(0.29 - 0.01)/0.3= (0.3 x 0.28)/0.3 = 0.28