A school has 3000 pupils overall, 2000 of whom are boys and the rest kids are girls. The ratio boys and girls is-

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

2:1

1:3

1:2

3:1

answer is C.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Concept: In order to answer this topic, let's first clarify what a ratio is and some of its terms. We are given information about the school's total enrollment. The number of girls will be determined by subtracting the number of boys from the total number of students in the school. Once we know how many girls there are, we can calculate the ratio by dividing that number by how many boys there are, then simplifying it to the simplest fractional form.
Ratios are used in mathematics to define relationships between two quantitative values and to express one in the form of another. Therefore, the ratio is expressed as a: b if a and b are two numerical numbers.
The ratio of two values, a and b, must be written in the simplest fraction; for example, if a = k(c) and b = k(d) , the ratio will be k(c): k(d) , which can be written as c: d. As a result, the ratio between a and b can alternatively be expressed as

.
We are informed that there are 3000 pupils enrolled in the institution as a whole. The fact that there are 2000 males in the school is also a certainty.
The difference between the total number of pupils and the total number of boys will be used to calculate the number of girls.

As a result, the number of females to boys will be expressed as

As a result, the gender ratio is 1: 2.
Hence, the correct option is 3) 1 : 2

Watch 3-min video & get full concept clarity