ABC26GN1579 · Average

Subject: General Aptitude · Chapter: Average · Exam: 2006 · Marks: · Difficulty:

A person purchases 1 kg of tomatoes from each of the 4 places at the rate of 1 kg, 2 kg, 3 kg, 4 kg per rupee respectively. On an average, he has purchased $x \mathrm{kg}$ of tomatoes per rupee. Then the value of $x$ is

(a)1.92

(b)2

(c)2.5

(d)None of these

Answer

Answer (as printed): A

Explanation

Total quantity purchased $=4 \mathrm{kg}$. $$\begin{aligned} \text { Total money paid }= & ₹\left(1+\frac{1}{2}+\frac{1}{3}+\frac{1}{4}\right)=₹ \frac{25}{12} . \\ \therefore \text { Required average } & =\left(4 \times \frac{12}{25}\right) \mathrm{kg} / \text { rupee } \\ & =\left(\frac{48}{25}\right) \mathrm{kg} / \text { rupee }=1.92 \mathrm{kg} / \text { rupee } . \end{aligned}$$

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