The price of gold is directly proportional to the square of its weight. It being sold after breaking in the ratio of 2 : 3 : 4 therefore earned a loss of ₹1560. The price of gold before breaking is
Answer & explanation
Correct answer: option 2
Price of gold = ( weight of gold)2
I : II : III : Actual
weight ⇒ 2 : 3 : 4 : 9
Price ⇒ 22 : 32 : 42 : 92
⇒ 4 : 9 : 16 : 81
Now,
Actual Price = 81
Price after break = (4 + 9 + 16) = 29
Loss = 81 - 29 = 52R
⇒ 52R = 1560 (given)
⇒ 1R = 30
Hence,
Actual Price = 81 × 30 = 2430/-