ABC26GN1554 · Average
Subject: General Aptitude · Chapter: Average · Exam: · Marks: · Difficulty:
If $a, b, c, d, e$ are five consecutive odd numbers, their average is
(a)$5(a+4)$
(b)$\frac{abcde}{5}$
(c)$5(a+b+c+d+e)$
(d)None of these
Answer
Explanation
Clearly, $b=a+2, c=a+4, d=a+6$ and $e=a+8$. $$\begin{aligned} \therefore \text { Average } & =\frac{a+(a+2)+(a+4)+(a+6)+(a+8)}{5} \\ & =\left(\frac{5 a+20}{5}\right)=(a+4) . \end{aligned}$$
Explanation as extracted from the printed page; notation may be imperfect.
Open in whiteboard · Browse this chapter in the app