Reva and Anju live in different countries and possibly have different preferences. Each consumes two goods, x, and y. Anju has to pay 12 marks per unit of x and 5 marks per unit of y. Anju spends her entire income on 5 units of x and 22 units of y. Good x costs Reva 9 quid per unit and good y costs Reva 7 quid per unit. Reva spends her entire income to buy 8 units of x and 11 units of y. Would Reva prefer to have Anju's income and prices instead of her own? Explain.