A moment ago, there were a total of 1533 spectators at a squash match. 304 of the female spectators and 525 of the male spectators left the stadium. Now there are thrice as many female as male spectators left in the stadium. How many more female than male spectators are there in the stadium now?
Number of spectators left in the stadium
= 1533 - 304 - 525
= 704

Number of male spectators in the end = 1 u
Number of female spectators in the end = 3 u
Total number of spectators in the end = 1 u + 3 u = 4 u

4 u = 704
1 u = 704 ÷ 4 = 176

Number of male spectators
= 1 u 
= 176

Number of female spectators
= 3 u
= 3 x 176
= 528

Number of female spectators more than the male spectators
= 528 - 176
= 352

Answer(s): 352