The cost of 4 dozen papers is ₹ 24. The cost of 1 score of papers (in rupees) is ____ · ABC26GN3385

Subject: General Aptitude · Chapter: Chain Rule · Exam: APTET 2011

The cost of 4 dozen papers is ₹ 24. The cost of 1 score of papers (in rupees) is $\_\_\_\_$

(a)40

(b)20

(c)10

(d)42

Answer

Answer (as printed): C

Explanation

1 score of papers = 20 papers. Cost of 4 dozen papers $=₹ 24$ Cost of 20 papers $=\frac{24}{4 \times 12} \times 20=₹ 10$

Explanation as extracted from the printed page; notation may be imperfect.

Study loop for Chain Rule