ABC26GN0719 · Decimal Fractions
Subject: General Aptitude · Chapter: Decimal Fractions · Exam: · Marks: · Difficulty:
$3 . \overline{87}-2 . \overline{59}=$ ?
(a)1.20
(b)$1 . \overline{2}$
(c)$1 . \overline{27}$
(d)$1 . \overline{28}$
Answer
Explanation
$$\begin{aligned} 3 . \overline{87}-2 . \overline{59} & =(3+0 . \overline{87})-(2+0 . \overline{59})=\left(3+\frac{87}{99}\right)-\left(2+\frac{59}{99}\right) \\ & =1+\left(\frac{87}{99}-\frac{59}{99}\right)=1+\frac{28}{99}=1 . \overline{28} . \end{aligned}$$
Explanation as extracted from the printed page; notation may be imperfect.
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