 
 <prompt> To run his grocery store, Mr. Haj needs $4000 a day. This money is used to pay for orders done, delivery costs and employees' salaries. If he spends 2/5 of the total operation costs on employees' salary and 1/4 of the remaining amount on delivery costs, how much money does he pay for the orders done?

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Fun ara rẹ lọwọ Mr. Haj ni $4000 lẹhin ojusọ. Owo yii ti wa lọ lati fi sọ awọn ojusọ ti wa ṣe, owo idanwo ati owo awọn ọmọ-ọdun. Tẹ ọkan ti o ṣe 2/5 lati awọn owo iṣẹ iṣẹ lọwọ awọn ọmọ-ọdun ati 1/4 lati awọn owo ti o baṣẹ lọwọ awọn ojusọ, bii o ṣe naira pupọ owo o baṣẹ lọwọ awọn ojusọ ti wa?``` <response>: ```Iye owo tobi ti Mr. Haj ti lo lati fi owo awon olaju lati pe ni 2/5*$4000 = $1600 Lati pe owo awon olaju, Mr. Haj wa ni $4000-$1600 = $2400 O tun lo 1/4*$2400= $600 si awon iye idoko. Iye tobi ti o wa ni lati pe fun awon iye ni $2400-$600 = $1800

Iwe yii ni 1800.``` 