From "A is two fifths more than B", we can know that A: B is 7: 5, and from "B's deposit is 1 1 4 times of A's", we can know that A: B = 14: 25!
Original A: B = 35: 25
and
Compared with Party A (after Party A withdraws money), Party B = 14: 25, and there are 2 1 0/21=10 (RMB) "Find the amount of money represented by each copy".
Residual =10 *14 =140 (yuan)
2.
(3/4)/( 1/20+ 1/30)= 9(h)
1/20-1/30 =1/60 (A scores more than B every hour)
1/60*9=3/20
72/(3/20)=480 (total pages)
480* 1/20*9=2 16 (page a)
2 16-72= 144 (page b)