• Math

  Percentages

  Posted by Radhika Gupta on June 2, 2023 at 10:13 am

  There are 500 students in a school in which 36% are girls. The difference between the number of boys and girls is:

  a) 140

  b) 120

  c) 180

  d) 320

  Tanya Singh replied 1 year, 10 months ago 3 Members · 2 Replies

  • maths-2
• 2 Replies

• 

  Rishabh Parihar

  Member

  June 2, 2023 at 5:06 pm

  To find the difference between the number of boys and girls, we need to determine the number of girls and boys in the school.

  Given that 36% of the students are girls, we can calculate the number of girls by multiplying 36% (0.36) by the total number of students:

  Number of girls = 0.36 * 500 = 180

  To find the number of boys, we subtract the number of girls from the total number of students:

  Number of boys = 500 – 180 = 320

  The difference between the number of boys and girls is 320 – 180 = 140.

  Therefore, the correct answer is (a) 140.

• 

  Tanya Singh

  Member

  June 22, 2023 at 3:00 pm

  Total number of students is equal to 100% of the class.=500

  Percentage of boys in the class=100%-36%=64%

  Difference in the number of boys and girls=64%-36%=28%

  Since 100%=500

  28%=500*28/100=140

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