Look at the notes below. Some information is missing. You will hear a telephone conversation about office shelving system. For e

A: Good morning. I’m phoning to enquire about your office shelving system...code number SS007.
B: Oh yes, what would you like to know?
A; Well, I’d like to check on the dimensions first make sure that they’ll fit. First of all, how wide are they?
B: Just a moment sir, I’ll get the specifications... you asked about the width...yes, the standard unit is 3.5 metres wide.
A: And the height?
B: They’re 2 metres high with flexible positions for the shelves.
A: How many shelves can actually be fitted?
B: Really as many as you like, but normally five.
A: I see. I need to know how much they stick out, in other words, how deep are they?
B: They’re 30 centimetres deep.
A: Thanks, that’s the dimensions. Now, what about delivery?
B: Well, it depends how far you are from our warehouse.
A: We’re about ten miles from the centre.
B: I see. well, that’s in our free delivery area, so there’ll be no extra charge for delivery.
A: Good. Actually, what I meant was how long does it take after I place an order?
B: I see sir. We guarantee delivery within two weeks.
A: Good. Well, we’re interested in ten of your standard units for a suite of offices. How much do you charge?
B: Well the unit cost is ￡98 but in view of the size of the order, we can offer a 5 percent discount...just a moment, I’ll just do the figures...yes, that comes to ￡931 -let’s round it off and call it￡30.
A: That sounds reasonable. Finally, what sort of guarantee de you offer?
B: Well, these units are extremely sturdy and reliable. There’s the usual one-year guarantee but they have an average life of at least 20 years...