Rini has mixed two colours ‘C1’ and ‘C2’ in the ratio 2 : 3. If the rate of the colour ‘C1’ is ₹500 per unit and she is selling the mixture of the two colours at ₹650 per unit at breakeven price, then what is the rate (in ₹) per unit of the second colour, that is, ‘C2’?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 750.
Let the rater per unit of color C2 be ₹x.
Given that, rate per unit of color C1 = ₹500
Seeling price of the two colors = ₹650
According to the given question,
2 × 500 + 3x = 5 × 650
⇒ 1000 + 3x = 3250
⇒ 3x = 2250
⇒ x = 750
Hence the rate per unit of color C2 is 750.