Use the same Classical$-$type table showing the number of days of labor input required to obtain $1$ unit of output of each of the five commodities in each of the two countries:

$\backslash$table$[[,$Gems,Computers,Cars,Mineral Fuels,Pharmaceuticals,Furniture,Aircrafts,Works of Art$],[\backslash$table$[[$United$],[$Kingdom$]],35$ Days,$3$ Days,$5$ Days,$7$ Days,$14$ Days,$10$ Days,$375$ Days,$10$ Days$],[$United States,$15$ Days,$2$ Days,$5$ Days,$6$ Days,$30$ Days,$7$ Days,$115$ Days,$40$ Days$]]$

Keeping $W_{US}$ at $$\frac{20}{?}$ day and keeping the exchange rate at $$\frac{2}{}1($which means $1=$$$2),$

a$.$ If trade is taking place between the two countries, the "lower limit$"$ to U$.$K$.$ wage rate per day is poynd $($keep $2$ decimals$).$

b$.$ If trade is taking place between the two countries, the "upper limit$"$ to U$.$K$.$ wage rate per day is pound.