µÑÇÍÂèÒ§·Õè 1
¡ÁÅÊͺä´éÊѧ¤Áä´é 95% ¶éÒ¤Ðá¹¹àµçÁ 180 ¤Ðá¹¹
¨§ËÒÇèÒ¡ÁÅÊͺä´é¡Õè¤Ðá¹¹
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ÊÁÁµÔãËé ¡ÁÅÊͺä´é X ¤Ðá¹¹
¨Ðä´é ÊÑ´Êèǹ
(¤Ù³ä¢Çé)
X x 100 =
180 x 95
X =
X =
171
´Ñ§¹Ñé¹ ¡ÁÅÊͺä´é 171 ¤Ðá¹¹ Ans.
µÑÇÍÂèÒ§·Õè 2
·ÕÁ¿ØµºÍŢͧâçàÃÕ¹áËè§Ë¹Öè§á¢è§¢Ñ¹ª¹Ð 75% ¢Í§
¨Ó¹Ç¹¤ÃÑ駷Õèŧá¢è§¢Ñ¹ ¶éÒ·ÕÁ¹Õéŧá¢è§¢Ñ¹ 24 ¤ÃÑé§ ¨Ðª¹Ð¡Õè¤ÃÑé§
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ÊÁÁµÔãËé ·ÕÁ·Õ誹РY ¤ÃÑé§
¨Ðä´é ÊÑ´Êèǹ
(¤Ù³ä¢Çé)
Y x 100 =
75 x 24
Y =
X =
18
´Ñ§¹Ñé¹ ·ÕÁ¿ØµºÍŹÕ骹СÒÃá¢è§¢Ñ¹ 18 ¤ÃÑé§ Ans.
µÑÇÍÂèÒ§·Õè 3
ÁÕà»ç´·Ñé§ËÁ´ 250 µÑÇ àÁ×èÍà»ç´âµ¢Öé¹»ÃÒ¡¯ÇèÒàËÅ×Íà»ç´à¾Õ§
220 µÑÇ ÍÂÒ¡·ÃÒºÇèÒà»ç´µÒÂ仡Õèà»ÍÃìà«ç¹µì¢Í§à»ç´·Ñé§ËÁ´
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ÊÁÁµÔãËé à»ç´µÒÂä» K%
à»ç´µÒ = 250 - 220 = 30 µÑÇ
¨Ðä´é ÊÑ´Êèǹ
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K x 250 =
30 x 100
K =
K =
12
´Ñ§¹Ñé¹ à»ç´µÒÂä» 12% Ans.