tag:blogger.com,1999:blog-6746419206932469118.post2126905741085836116..comments2023-09-23T19:03:39.693+08:00Comments on Road to PSLE: Singapore Chinese Girls Sch 2008 PSLE Math Prelim Q48Excel Eduservicehttp://www.blogger.com/profile/11691081348489781290noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-6746419206932469118.post-50428023086549769722009-09-05T17:32:03.317+08:002009-09-05T17:32:03.317+08:00Cindy bought T-shirts at $5 each and sold them at ...Cindy bought T-shirts at $5 each and sold them at $9 each. Those who bought two T-shirts from her were given one T-shirt free. At the end of the sale, Cindy earned a total of $1288 and 120 T-shirts were given free. How many customers bought only one T-shirt?<br /><br />Cost of the 120 T-shirts given away for free = 120 x $5 = $ 600<br />Profit for the rest of the T-shirts sold at $9 each = $1288 + $ 600 = $ 1888<br />Number of T-shirts sold = $ 1888 / 4 = 472<br />Number of T-shirts sold with free T-shirts = 120 x 2 = 240<br />Number of customers who bought only one T-shirt each from Cindy = 472-240 = 232Anonymousnoreply@blogger.com