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

### Instruction:
The difference between the number of boys and girls in a tree planting event is 400. If there are 600 boys at the event, and the number of girls is more than the number of boys, what's 60% of the total number of boys and girls at the event?

### Response:
 Ikiwa kuna wavulana 600 katika tukio hilo, na tofauti kati ya wavulana na wasichana ni 400, kuna wasichana 600+400 = <<600+400=1000>>1000.
Idadi ya wasichana ni zaidi ya idadi ya wavulana kwa 1000-600 = <<1000-600=400>>400.
Idadi jumla ya wavulana na wasichana katika tukio hilo ni 1000+600 = <<1000+600=1600>>1600.
Asilimia 60 ya idadi ya jumla ya wavulana na wasichana katika tukio hilo ni 60/100*1600 = <<60/100*1600=960>>960.