The cost of 8 fans and 14 ovens is ₹ 36.520. What is the cost of 12 fans and 21 ovens?
(a)₹ 56.800
(b)₹ 54.780
(c)₹ 57.950
(d)Cannot be determined
Answer
Answer (as printed): B
Explanation
Cost of 8 fans and 14 oven's is ₹ 36.520 Cost of 4 fans and 7 oven's is $=\frac{36.520}{2}=₹ 18.260$ Cost of 12 fans and 21 oven's $=18.260 \times 3=₹ 54.780$.
Explanation as extracted from the printed page; notation may be imperfect.