What ratio must wheat A at Rs.10.50/kg be mixed with wheat B at Rs.12.30/kg, so that the mixture be worth of Rs.11/kg? Choose the correct choice from the following answers
A) 2:5  B) 3:7  C) 5:9  D) 6:11  E) 13:5
Convert Rs into paise, to make the calculation easy   Ratio =	(B – M)   (M – A)   The required ratio = 130 : 50 = 13 : 5   13:5
<result>E</result>
What ratio must wheat A at Rs.10.50/kg be mixed with wheat B at Rs.12.30/kg, so that the mixture be worth of Rs.11/kg?