Among them, A accounts for one sixth of 2525.
————-————=————————=————————
1 12 15: 18: 12( 15+ 18+ 12)=45
——:——:——
65 15
B accounts for one fifth: 18 18.
————-————=————————=————————
1 12 15: 18: 12( 15+ 18+ 12)=45
——:——:——
65 15
C accounts for one twelfth: 12 12.
————-————=————————=————————
1 12 15: 18: 12( 15+ 18+ 12)=45
——:——:——
65 15
Usage: 1500 * 65438+45 of 05 = 500 (pieces)
1500 * 18 45 = 600(B)
1500* 12 45=400 (C)
References:
Think with your head! ! !
Please adopt it, I find it difficult to come up with it! ! ! )
1, table problem: a square table, cut off one corner, how many corners are left.
2, cut tofu problem: a piece of tofu cut three knives, can be cut