What will the price be if they buy 30? From which platform does the train leave?

M: They are exactly what we need. The only problem is the price.
W: How much do they cost?
M: $60.
W: If we buy 30, what discount will they give us?
M: 10%.
W: What if we bought 100?
M: We’d get a higher discount, but we’d never be able to sell them all.

M: Excuse me, could you tell me which platform the 3 o’clock train leaves from?
W: Yes, it’s platform 10.
M: Thank you. Which end of the station is that?
W: The left-hand side, but you’d better get there 10 minutes earlier because there are a lot of people going.
M: OK. Thank you very much.