Page 173 - คณิตศาสตร์ ม.ต้น พค.21001
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3) ในชวง พ.ศ. 2531 – 2533 ปริมาณไมสักและไมประดูที่ผลิตไดมีลักษณะการเปลี่ยนแปลงเปน
อยางไร และชนิดใดมีการเปลี่ยนแปลงมากกวา
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4) ใน พ.ศ. 2532 ปริมาณไมสักที่ผลิตไดคิดเปนกี่เปอรเซ็นตของปริมาณไมประดูที่ผลิตไดในป
เดียวกัน (ตอบเปนคาประมาณของจํานวนเต็มหนวย)
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5) ปริมาณไมประดูในปที่ผลิตไดมากที่สุดและในปที่ผลิตไดนอยที่สุดแตกตางกันประมาณกี่
ลูกบาศกเมตร
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