Question

В школе 50% учащихся занимается в спортивных секциях , из них 30% поёт в хоре.Какой процент учащихся школы одновременно занимается в спортивных секциях и поёт в хоре.

Answer 1

Ответ:

15%

Пошаговое объяснение:

50%=50/100 =0,5 - часть учащихся занимается спортом

30%=30/100 =0,3 - часть спортсменов поёт в хоре

0,5*0,3=0,15 - часть учащихся занимается спортом и поёт в хоре

0,15*100%=15% - всех учащихся занимается спортом и поёт в хоре

Answer 2

Calculation of the Percentage of Students Engaged in Sports and Choir

To calculate the percentage of students who are simultaneously engaged in sports and choir, we need to consider the following information:

- 50% of the students are involved in sports sections. - Among those involved in sports sections, 30% also participate in the choir.

To find the percentage of students who are involved in both sports and choir, we can multiply the percentages of students involved in sports sections and the percentage of those involved in the choir.

Let's calculate it step by step:

1. Percentage of students involved in sports sections: 50% 2. Percentage of students involved in the choir among those in sports sections: 30%

To find the percentage of students involved in both sports and choir, we multiply these two percentages:

50% * 30% = 15%

Therefore, 15% of the students in the school are simultaneously engaged in sports sections and participate in the choir.

Please note that the provided information does not include the total number of students in the school, so we can only calculate the percentage based on the given percentages.