A shopkeeper mixes two types of rice costing ₹250/5 kg and ₹280/5 kg in the ratio 7 : 8. Find the net cost of the resultant mixture (per kg).
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. ₹53.20.
Given that, cost of first type of rice = ₹250/5 kg
⇒ cost of first type of rice (per kg) = ₹50
Cost of second type of rice = ₹280/5 kg
⇒ cost of second type of rice (per kg) = ₹56
Let the first ajnd second type of rice be 7x kg and 8x kg respectively.
Now, total amount of both types of rice = 7x + 8x = 15x kg
Total price of the mixture = 7x(50) + 8x(56)
⇒ 350x + 448x = ₹798x
Total price of mixture per kg = = 53.20
Hence the net cost of the resultant mixture (per kg) is ₹53.20.