Rice worth ₹504 per kg and ₹540 per kg are mixed with the third variety in the ratio of 1 : 1 : 2, if the mixture is worth ₹612 per kg, find the price (per kg in ₹) of the third variety.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 702.
Let the price of the third variety of rice = x/kg
(504 × 1) + (540 × 1) + (x × 2) = 612 × 4
⇒ 504 + 540 + 2x = 2448
⇒ 2x = 2448 - 1044 = 1404
⇒ x = 1404/2 = 702
Hence, the price of the third variety of rice is ₹702 per kg.