 
<translate> John ya kashe $ 20 x 1 / 5 = $ 4 a kan kayan ciye-ciye. Yana da $ 20 - $ 4 = $ 16 da suka rage. Ya kashe $16 x 3 / 4 = $12 a kan bukatunsa. Don haka, John ya rage da $16 - $12 = $4. Amsar ƙarshe: 4. <eng> John spent $20 x 1 / 5 = $4 on snacks. He had $20 - $4 = $16 remaining. He spent $16 x 3 / 4 = $12 on his necessities. So, John is left with $16 - $12 = $4. The final answer: 4. 