The ratio, in which a shopkeeper mixes two varieties of rice costing ₹85 /kg and ₹100 /kg respectively so as to get a mixture of worth ₹92 /kg is :

8 : 7

The correct answer is Option (1) → 8 : 7

Cheaper Price = 85

Mean Price = 92

Dearer Price = 100

$\text{Ratio}=\frac{\text{Dearer Price - Mean Price}}{\text{Mean Price - Cheaper Price}}$

$=\frac{100-92}{92-85}=\frac{8}{7}$