¢Ç´Êà»ÃÂì¹éÓËÍÁ ẺÊà»ÃÂ좹Ҵ 5- 8 «Õ«Õ
ÿÊÇÂà¡ë ¹èÒÃÑ¡ à»ç¹ÃÙ»¡ÃÐâ»Ã§
ÿ
ÃÒ¤Ò»¡µÔ ¢Ç´ÅÐ 45 ºÒ·
6 ªÔé¹àËÅ×ͪÔé¹ÅÐ 40 ºÒ· ( 40* 6 ) = 240 ºÒ·
1 âËÅ àËÅ×ͪÔé¹ÅÐ 35 ºÒ· ( 35*12 ) = 420 ºÒ·
ÿ
¶éÒÊÑ觪Ôé¹à´ÕÂÇ àÍÒä»ÃÇÁ¡ÑºÃÒ¡ÒÃÍ×è¹ä´é¤èÐ
·Ø¡ÃÒ¡ÒÃ
+ ¤èÒÊè§ÍÕ¡ 20 ºÒ· Ê觴èǹ + ÍÕ¡20 ºÒ·
ÿ | 
)
