Question

Lucy has 68 books.
This number of books is 70% more than the number of books she had last year.
How many books did Lucy have last year?

Answer 1

Answer:

Lucy had 40 books last year.

Step-by-step explanation:

assuming 100% is the percent;

100% + 70%

100 : x

170 : 68

cross multiply = 170x = 100 x 68

-------- ————-

170 170

cancel 170/170

therefore x = 100 x 68 divided by 170

result is 40

Answer 2

40 books my guy.....