In what proportion must wheat at Rs. 15 per kg. be mixed with wheat at Rs. 18 per kg. So that the mixture will be worth Rs. 17 per kg. ? Choose the correct choice from the following answers:
A) 1 : 9 B) 1 : 3 C) 1 : 2 D) 1 : 1 E) 1 : 8
Explanation:   Wheat/Rs. 15 per kg.   Wheat/Rs. 18 per kg.   For the mixture to be worth Rs. 17 per kg. The ratio should be:   (18 – 17) : (17 – 15)   1 : 2   ANSWER:1 : 2
<result>C</result>
In what proportion must wheat at Rs. 15 per kg. be mixed with wheat at Rs. 18 per kg. So that the mixture will be worth Rs. 17 per kg. ?