1. On the map with the scale of 1: 10000, the distance between Party A and Party B is 4cm. What is the distance between Party A and Party B on the map with the scale of 1:8000?

4x10000 ÷ 8000 = 5cm

The printing house has bound a batch of maps. If 3000 copies are bound every day, 16 days will be bound. How many copies should I bind every day if I want to advance 4 days?

(3000x16) ÷ (16-4) = 4000 (volume)

3. The tonnage ratio of grain stored in warehouse A and warehouse B is 9: 1 1. 15 ton is shipped out of warehouse b, and the tonnage ratio of grain stored in warehouse a and warehouse b is 3:2. How many tons of grain is stored in warehouse A?

A: B =9: 1 1。

A: B =3:2=9:6。

Each serving:15 (11-6) = 3 (ton)

A Original: 3x9=27 (ton)