Page 43 - รายงาน PLC สาระคณิตศาสตร์ ปี 2562
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3. รถยนตคันหนึ่งราคา 1,075,000 บาท จายคาเงินดาวนใหบริษทขายรถยนตเปนเงิน 325,000 บาท ถาผอนสงเดอน
ั
ละ 50,000 บาท จะตองผอนกี่เดือนจึงจะหมดโดยไมเสียดอกเบี้ย
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4. พุทรา 1 กิโลกรัม มี 87 ผล ถาซาราซือพุทรา 12 กิโลกรัม และซื้อฝรั่ง 925 ผล ซาราจะมีผลไมทั้งหมดกี่ผล
้
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