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

### Instruction:
Stacy went to a store to buy some pairs of shorts. Each pair normally cost $10, but there's a discount of 10% on the total cost for people who purchase 3 or more pairs at once. How much can she save by buying 3 pairs at once as opposed to purchasing them individually at different times?

### Response:
 Bila punguzo, kila jozi inagharimu $10 hivyo jozi 3 zinagharimu 3*$10 = $<<10*3=30>>30
Kwa punguzo la 10% kwenye gharama jumla, anaweza kulipa tu $30-($30*(10/100)) = $<<30-(30*(10/100))=27>>27
Kwa kununua jozi 3 kwa wakati mmoja ili kupata punguzo, anaweza kuokoa $30-$27 = $3