Mdm Tan sold 2/7 of the muffins she baked and Mdm Ong sold 1/2 of he muffins she baked. They had an equal number of muffins left. If Mdm ong baked 120 more muffins than Mdm Tan, how many muffins did Mdm Tan baked?
Sold 2/7 then 5/7 are left 1/2 sold means 1/2 left
o = t +120
5/7 t = 1/2 (t+120) solve for t ( then o = t +120)