Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Marta is weighing fruit at the grocery store. The apples weigh four ounces each and the oranges weight 3 ounces. Each plastic bag in the grocery store can hold 49 ounces of fruit before it splits. If Martha wants to put an equal number of apples and oranges in each bag, and she wants to buy 3 full bags of fruit, how many ounces of apples should she buy?

### Response:
 Kila mfuko unaweza kubeba unga wa matunda wa 49 unga, na Marta anataka mifuko mitatu, kwa hivyo anahitaji unga wa matunda wa 49 * 3 = <<49*3=147>>147 unga.
Marta anataka idadi sawa ya tofaa na chungwa kwenye kila mfuko, kwa hivyo matunda daima yanakuja kwa jozi. Pata uzito wa kila jozi ya matunda kwa kuongeza uzito wa tofaa moja na uzito wa chungwa moja: 3 + 4 = <<3+4=7>>7 unga.
Sasa pata idadi jumla ya jozi za matunda ambazo Marta anahitaji kujaza mifuko kwa kugawanya uzito jumla kwenye mifuko na uzito wa kila jozi ya matunda: 147 / 7 = <<147/7=21>>21.
Hatimaye, zidisha idadi jumla ya tofaa ambazo Marta anahitaji kununua (21) na uzito kwa kila tofaa (4 unga) ili kupata unga wangapi anapaswa kununua: 21 * 4 = <<21*4=84>>84 unga za tofaa.