A library has been given a specific amount of money and can buy 350 hardback books costing £15.75 each
a How many books costing £10.50 could be bought instead?
b What type of proportion does this represent

525 books

Step-by-step explanation:

Total books = 350

Cost of each book = £15.75

Total cost = 350 × £15.75

= £5,512.5

a. How many books costing £10.50 could be bought instead?

Instead of using £5,512.5 to buy 350 books at £15.75 each,

Number of books = total cost / cost per book

= £5,512.5 / £10.50

= 525 books

£5,512.5 can be used to buy 525 books at £10.50 each

The proportion is a direct proportion

is there any photos or whatever?