help pls

[sturdy ore]

17500

19400

£7

[dense oracle]

How ?

[primal pasture]

This is the bounds topic

It’ll be 17500 and 19500

[dense oracle]

Oh

[glad sphinx]

Thats incorrect it’s not 19500 because that rounds up to 20k it’s 18499 because thats the largest whole number which rounds down to 18k

[primal pasture]

In the bounds topic 20500 can round to 20000 if it’s to 2sf

No?

[old slate]

Yes ur right

[glad sphinx]

No it’s anything strictly less than 20500

Like 20499.99 for example

[dense oracle]

I’m so confuse with this

[glad sphinx]

It should be 17500 and 18499

[old slate]

U can keep it 18500

[glad sphinx]

No because that rounds up to 19000

[old slate]

Ik but examiner allows 18500

[primal pasture]

its a bounds question like i said lol

[old slate]

Tell him that

[glad sphinx]

Here is the mark scheme for the original question

If you are considering bounds, then you would write 17500 <= p < 18500
But it is strictly less than 18500 meaning it cannot be 18500, and since we are talking about people, it must be a whole number, therefore 18499

[old slate]

Yup