ÁöÇý Ű¿ì´Â ¿µ¾î(Á¦ 51 ȸ) : ¿ëµ·
2026-04-29 ¿ÀÈÄ 11:32:26 | Á¶È¸ : 213
ÁöÇý Ű¿ì´Â ¿µ¾î(Á¦ 51 ȸ) : ¿ëµ·
english that cultivates wisdom !
[¹®] :
a grandpa gave a total of $ 100 to his five grandchildren.
¾î¶² ÇҾƹöÁö°¡ ±×ÀÇ ´Ù¼¸ ¼ÕÀڵ鿡°Ô ÇÕ°è $100ÀÇ ¿ëµ·À» ÁÖ¾ú½À´Ï´Ù.
starting with the youngest,
each got $2.00 more than the next younger one.
¸·³»¼ºÎÅÍ ½ÃÀÛÇÏ¿©,
°¢ÀÚ´Â ¹Ù·Î ¾Æ·¡µ¿»ýº¸´Ù $2¾¿À» ´õ °¡Á³½À´Ï´Ù.
in other words, the youngest got one sum,
the next got $2.00 more, and so on.
´Ù¸¥ ¸»·ÎÇϸé, °¡Àå ³ªÀÌ ÀûÀº ¾ÆÀ̰¡ 1ºÒÀ» °¡Áö¸é,
´ÙÀ½Àº 2ºÒÀ» ´õ °®°Ô(3ºÒ), ±×·¸°Ô ÇÏ¿´½À´Ï´Ù.
how much did the youngest grandchild get?
°¡Àå ³ªÀ̾ ¼ÕÀÚ´Â ¾ó¸¶¸¦ ¹Þ¾ÒÀ»±î¿ä?
º¸±â : °¡) $16.00 ³ª) $17.00 ´Ù) $18.00 ¶ó) $19.00
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<¿À´ÃÀÇ ¸í¾ð>
if at first you dont succeed, try, try again.
/ óÀ½¿¡ ¼º°øÇÏÁö ¸øÇÑ´Ù¸é, ´Ù½Ã ½Ãµµ ÇÏ°í ¶Ç ´Ù½Ã ½ÃµµÇ϶ó!
--> ¾Æ¹«¸® ½ÇÆÐ¸¦ °ÅµìÇØµµ Àý¸ÁÇϰųª ü³äÄ¡ ¾Ê°í ³¡±îÁö ºÐÅõ³ë·ÂÇ϶ó´Â °Í.
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[Á¤´ä ¹× ÇØ¼³]
Á¤´ä : °¡) $16.00
ÇØ¼® :
¸·³»ÀÎ ´Ù¼¸Â°°¡ ¹ÞÀº µ·À» y(youngest)·Î º¸¸é,
³Ý°´Â : y +2, ¼Â°´Â (y+2)+2 =y+4,
µÑ°´Â (y+4)+2, ù°´Â (y+6)+2 ÀÌ´Ù.
À̵éÀÌ ¹ÞÀº µ·ÀÇ ÇÕÀº $100 ÀÓÀ¸·Î, 5y +20 = 100 ÀÌ µÈ´Ù.
5y = 100 –20, ¡Å y = 16
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