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

### Instruction:
April went to a concert that has two bands. 2/3 of the audience was there for the second band and 1/3 was there for the first band. 50% of the audience there for the second band is under the age of 30. Of this group, 60% are women and there are 20 men. How many people are at the concert?

### Response:
 Kati ya wale walio chini ya umri wa miaka 30 waliokuwepo kwa ajili ya bendi ya pili, 40% ni wanaume kwa sababu 100 - 60 = <<100-60=40>>40
Kuna watu hamsini walio chini ya umri wa miaka 30 kwenye hadhira waliokuwepo kwa ajili ya bendi ya pili kwa sababu 20 / .4 = <<20/.4=50>>50
Kuna watu 100 waliokuwepo kwa ajili ya bendi ya pili kwa sababu 50 / .5 = <<50/.5=100>>100
Kuna watu 150 kwenye tamasha kwa sababu 100 / (2/3) = <<100/(2/3)=150>>150