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

### Instruction:
 Bomba la maji la Wallace ni mara mbili ukubwa wa bomba la maji la Catherine. Ikiwa uwezo wa bomba la maji la Wallace ni galoni 40 na limejaa 3/4, hesabu idadi jumla ya galoni za maji waliyonayo wote wawili ikiwa bomba la maji la Catherine pia limejaa maji hadi 3/4 ya uwezo wake.


### Response:
 Ikiwa bomba la maji la Wallace limejaa maji 3/4, lina galoni 3/4*40 = <<3/4*40=30>>30 za maji.
Kwa kuwa bomba la maji la Wallace ni mara mbili ukubwa wa bomba la maji la Catherine, bomba la maji la Catherine lina uwezo wa galoni 40/2 = <<40/2=20>>20.
Ikiwa bomba la maji la Catherine limejaa maji, lina galoni 3/4*20 = <<3/4*20=15>>15 za maji.
Pamoja, wakiwa wamejaa maji, bomba la maji la Wallace na Catherine lina galoni 30+15 = <<30+15=45>>45 za maji.