For the funfair, the school organizers ordered 30 rolls of tickets. Each roll of tickets has 100 tickets. The 4th graders bought 30% of the tickets while the 5th graders bought 50% of the remaining tickets. Then the 6th graders bought a total of 100 tickets. How many tickets were left unsold?
Барои ярмаркаи фароғат, ташкилкунандагони мактаб 30 ролаи чипта фармоиш доданд. Ҳар рола 100 чипта дорад. Талабагони синфи 4-ум 30% чиптаҳоро харидаанд, дар ҳоле ки талабагони синфи 5-ум 50% чиптаҳои боқимондаро харидаанд. Сипас, талабагони синфи 6-ум дар маҷмӯъ 100 чипта харидаанд. Чанд чипта фурӯхта нашуд?
How many tickets were ordered? ** There were a total of 30 x 100 = <<30*100=3000>>3000 tickets ordered by the school organizers.
How many tickets did the 4th graders buy? ** The 4th graders bought 3000 x 30/100 = <<3000*30/100=900>>900 tickets.
How many tickets were left? ** So, there were 3000 - 900 = <<3000-900=2100>>2100 tickets left for the other two grade levels.
How many tickets did the 5ers buy? ** The 5th graders bought 2100 x 50/100 = <<2100*50/100=1050>>1050 tickets.
How many tickets were left? ** So, 2100 - 1050 = <<2100-1050=1050>>1050 tickets were left then.
How many tickets were left unsold? ** Since 100 tickets were bought by the 6th graders, therefore 1050 - 100 = <<950=950>>950 tickets were left unsold.
#### 950
Чанд билет фармоиш дода шуд? ** Ҳамагӣ 30 x 100 = <<30*100=3000>>3000 билет аз ҷониби ташкилкунандагони мактаб фармоиш дода шуд.
Чанд билет харида шуд? ** Синфҳои 4-ум 3000 x 30/100 = <<3000*30/100=900>>900 билет харидаанд.
Чанд билет боқӣ монд? ** Пас, 3000 - 900 = <<3000-900=2100>>2100 билет барои дигар ду синф боқӣ монд.
Чанд билет синфҳои 5-ум харидаанд? ** Синфҳои 5-ум 2100 x 50/100 = <<2100*50/100=1050>>1050 билет харидаанд.
Чанд билет боқӣ монд? ** Пас, 2100 - 1050 = <<2100-1050=1050>>1050 билет боқӣ монд.
Чанд билет фурӯхта нашуд? ** Аз он сабаб, ки 100 билетро синфҳои 6-ум харидаанд, бинобар ин 1050 - 100 = <<950=950>>950 билет фурӯхта нашуд.
#### 950