(99.75)²-2250.0625= ? · ABC26GN0770

Subject: General Aptitude · Chapter: Decimal Fractions · Exam: Bank P.O. 2008

$(99.75)^{2}-2250.0625=$ ?

(a)6545.625

(b)7700

(c)8875

(d)9900.625

(e)None of these

Answer

Answer (as printed): B

Explanation

Given expression $=(100-0.25)^2-2250.0625 = (100)^2+(0.25)^2-2\times100\times0.25-2250.0625 = 10000.0625-50-2250.0625 = 10000.0625-2300.0625 = 7700$.

Explanation as extracted from the printed page; notation may be imperfect.

Study loop for Decimal Fractions