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

### Instruction:
 Kati ya wanafunzi 600 katika Shule ya Upili ya River Falls, 3/4 yao wanacheza tennis. Kati ya wale wanaocheza tennis, 60% yao pia wanacheza hockey. Wanafunzi wangapi wanacheza hockey na tennis pamoja?


### Response:
 Ili kupata idadi ya wanafunzi wanaocheza tennis, unazidisha wanafunzi 600 * 3/4 = <<600*3/4=450>>450.
Ili kupata idadi ya wanafunzi wanaocheza hockey na tennis, unazidisha wanafunzi 450 * 60% = <<450*60*.01=270>>270.