  Ncert solutions

Q10)

In a college, out of 4320 students, 2300 are girls. Find the ratio of

(a) Number of girls to the total number of students.

(b) The number of boys to the number of girls.

(c) The number of boys to the total number of students.

• Solution

• Transcript

SOLUTION:

Given, number of girls = 2300, and the total number of students = 4320

number of boys= number of students - number of girls

= 4320 - 2300 =2020

i) required ratio = \frac{number\ of\ gitls}{total\ number\ of\ students}=\ \frac{2300}{4320}=\frac{2300\div20}{4320\div20}=\frac{115}{216}=\ 115:216

ii) required ratio =\frac{number\ of\ boys}{number\ og\ girls}=\frac{2020}{2300}=\frac{2020\div20}{2300\div20}=\frac{101}{115}=101:115

ii) required ratio= number\ of\ \frac{boys}{students}=\frac{2020}{4320}=\frac{2020\div20}{4320\div20}=\frac{101}{216}=101:216

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