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In what ratio must a grocer mix two varieties of pulses costing Tk. 15 and Tk. 20 per kg respectively so as to get a mixture worth Tk.16.50 per kg ?

In what ratio must a grocer mix two varieties of pulses costing Tk. 15 and Tk. 20 per kg respectively so as to get a mixture worth Tk.16.50 per kg ? Correct Answer 7:3

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In what ratio must a grocer mix two varieties of pulses costing Rs. 20 and Rs. 25 per kg respectively so as to get a mixture worth Rs. 21 per kg?
In what ratio must a grocer mix two varieties of pulses costing Tk. 15 and TK. 20 per kg respectively so as to get a mixture worth Tk. 16.50 kg?
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  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?
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?
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Given below are two quantities named A and B. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of Mathematics to choose between the possible answer. Quantity A: In what ratio should flour costing Rs. 20 per kg be mixed with flour costing Rs. 25 per kg, such that the mixture costs Rs. 22 per kg? Quantity B: In what ratio should sugar costing Rs. 27 per kg be mixed with that costing Rs. 30 per kg, so as to earn a profit of 15% after selling the mixture for Rs. 32.2 per kg?
A shopkeeper wants to mix two varieties of tea at a cost of Rs. 50 per kg and Rs. 90 per kg to get the mixture worth Rs. 75. In what ratio should he mix both varieties.
There are two varieties of rice. Rice I or Rice II. Rice I costing Rs. 60 per kg and rice II costing Rs. 75 per kg. If both the rice mixed so that there will be no loss or gain on selling the mixture at the rate of Rs. 69 per Kg. Find the ratio in which both the varieties mix.