A toy weighing 24 grams of an alloy of two metals is worth Rs 174/-, but if the weights of the two metals be interchanged, the toy would be worth Rs 162/-. If the price of one metal be Rs. 8 per gram, find the price of the other metal used to make the toy.

• A. Rs. 10/ gram
• B. Rs. 6/ gram
• C. Rs. 4/ gram
• D. Rs. 5/ gram