ratios
https://minihotelier.com/blog/2016/06/09/ratios/Arithmetic
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?
a. 3:7
b. 5:7
c. 7:3
d. 7:5
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