Question

Question herChallenge in the first week of July, a record 1,020 people went to the local swimming pool. In thesecond week, 110 fewer people went to the pool than in the first week. In the third week, 130 morepeople went to the pool than in the second week. In the fourth week, 173 fewer people went to the poolthan in the third week. What is the percent decrease in the number of people who went to the pool overthese four weeks?The percent decrease of people who went to the pool is _%.

Answer 1

First week : 1,020 people

Second week : 110 fewer people = 1,020-110 = 910

Third week: 130 more people = 910+130=1,040

Fourth week : 173 fewer people = 1,040 - 173 = 867

Percentage decrease; (1,020 - 867)/1,020 x 100

= 15%