Question
There were some rows of desks in a tuckshop. Each row had 12 desks. When Risa brought in 6 extra desks and rearranged all the desks, there were 5 desks in each row and 4 more rows than before. How many desks were there at first?
4 m

Click button first when a symbol is required. X

There were some rows of desks in a tuckshop. Each row had 12 desks. When Risa brought in 6 extra desks and rearranged all the desks, there were 5 desks in each row and 4 more rows than before. How many desks were there at first?