The value of (.98)3+(.02)3+3 .98 .02-1 is

ABC26GN0773 · Decimal Fractions

Subject: General Aptitude · Chapter: Decimal Fractions · Exam: 2005 · Marks: · Difficulty:

The value of $(.98)^{3}+(.02)^{3}+3 \times .98 \times .02-1$ is

(a)0

(b)1

(c)1.09

(d)1.98

Answer

Answer (as printed): A

Explanation

Given expression $=\left[(.98)^{3}+(.02)^{3}+3 \times .98 \times .02\right.$ $$(.98+.02)]-1=(.98+.02)^{3}-1=(1)^{3}-1=0 .$$

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