In what ratio must a grocer mix two varieties of pulses costing Rs. 15 and Rs. 20 per kg respectively so as to get a mixture worth Rs. 16.50 kg? Choose the correct choice from the following answers:	A) 4:7	B) 3:7	C) 4:3	D) 7:3	E) 2:3
Cost of 1 kg pulses of 1st kind=Rs. 15   Cost of 1 kg pulses of 2nd kind=Rs. 20   Mean Price=Rs. 16.50   Cost of 1 kg pulses of 1st kind - Mean Price=15-16.50=Rs 1.50   Cost of 1 kg pulses of 2nd kind - Mean Price=20-16.50= 
<gadget id="calculator">20-16.50</gadget>
<output>3.5</output>
Rs 3.50   Required rate= 3.50 : 1.50 = 7 : 3.   Answer:7:3
<result>D</result>
In what ratio must a grocer mix two varieties of pulses costing Rs. 15 and Rs. 20 per kg respectively so as to get a mixture worth Rs. 16.50 kg?