ABC26GN3318 · Chain Rule
Subject: General Aptitude · Chapter: Chain Rule · Exam: · Marks: · Difficulty:
The price of 5.5 dozen pens is ₹ 1287. What is the price of 16 such pens?
(a)₹ 212
(b)₹ 296
(c)₹ 312
(d)₹ 412
(e)None of these
Answer
Explanation
5.5 dozen pens = $(5.5 \times 12)$ pens = 66 pens. Let the cost of 16 pens be $₹ x$. Less pens, Less cost (Direct Proportion). $\therefore 66:16::1287:x \Leftrightarrow 66x = 16 \times 1287 \Leftrightarrow x = \frac{16 \times 1287}{66} = ₹ 312$.
Explanation as extracted from the printed page; notation may be imperfect.
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