Subject: General Aptitude · Chapter: Average · Exam: 2006 · Marks: · Difficulty:
Among five people with monthly income (in ₹) 15000, 26000, 16000, 19000 and 50000, how many will have income less than the mean income of five people?
(a)1
(b)2
(c)3
(d)4
Answer
Answer (as printed): C
Explanation
Mean income $=₹\left(\frac{15000+26000+16000+19000+50000}{5}\right)$ $$=₹\left(\frac{126000}{5}\right)=₹ 25200 .$$ Clearly, three people have monthly incomes below the mean income.
Explanation as extracted from the printed page; notation may be imperfect.