The total pie chart represents 360° and medicine represents 39.6°. Therefore;
Expenditure on medicine = 45800 × (39.6 / 360)
Similarly groceries enjoy a share of 82.8°
Expenditures on groceries = 45800 × (82.8 / 360)
Therefore the reqd. ratio = 45800 ×( 39.6 / 360 ) : 45800×( 82.8 / 360 ) = 11 : 23.
Or
You can directly find the ratio of 39.6 : 82.8 = 11:23. So option 4.