 
 <translate> First, we need to determine how much the entire meal costs before we can determine the tip. We perform 10 + 20 + 30 = 60 dollars worth of food. Now we need to find out how much the total tip to be paid is, by multiplying 60 * .2 = 12 dollars in tips. Since they want to split this evenly amongst three people, this works out to 12 / 3 = 4 dollars in tips per person.
The answer: 4. <ibo> Nke mbụ, ọ dị anyị mkpa ịchọpụta ego ole nri ahụ dum na-efu tupu anyị enwee ike ịchọpụta ego nta. Anyị na-eme 10 + 20 + 30 = 60 dollar nke nri. Ugbu a, anyị kwesịrị ịchọpụta ego ole a ga-akwụ, site na ịba ụba 60 *.2 = 12 dollar na ego. Ebe ọ bụ na ha chọrọ ikesa nke a n'etiti mmadụ atọ, nke a na-arụ ọrụ na 12 / 3 = 4 dollar na ntụziaka kwa onye. Azịza ya bụ: 4. 