Calculating the percentage of beginners on each day -
Monday- 2/15*100 = 13.33≈ 13%
Tuesday - 5/30*100 = 16.66≈17%
Wednesday - 3/20*100 = 15%
Thursday - 5/25*100 = 20%
Friday - 9/40*100= 22.5%
We can clearly oberve the the gym met its goal on all the days except Friday.So, It met its goal on 4 days.