The ratio of girls to boys in a school is $5 : 3.$ If there are $300$ girls, find the number of boys.

210

No worries! We‘ve got your back. Try BYJU‘S free classes today!

180

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

240

No worries! We‘ve got your back. Try BYJU‘S free classes today!

150

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B: $180$
Given: Ratio of girls to boys $= 5 : 3$
And, the number of girls $= 300$

Let girls be $5 x$ and boys be $3 x$

$∴ 5 x = 300$ ( Given )

$\Rightarrow x = \frac{300}{5} = 60$

$∴$ Number of boys $= 3 x = 3 \times 60 = 180$

Suggest Corrections

106

Similar questions

The boys and girls in a school are in the ratio 8:3 . If the number of girls is 405, how many boys are there in the school ?

The ratio of the number of boys to the number of girls in a school is 14 : 15. There are 27 more girls than boys. How many girls are there in this school? How many boys?

Q. The ratio of boys and girls in a school is 12 : 5. If there are 840 girls in the school, then the number of boys is

(a) 1190
(b) 2380
(c) 2856
(d) 2142

Q. The boys and girls in the ratio

8 : 3

. If the number of girls is

42

. How many boys are there in the school.

Q. The boys and girls are in the ratio

8 : 3

,. If the number of girls are

40

. How many boys are there in the school?

Join BYJU'S Learning Program

The ratio of girls to boys in a school is 5:3. If there are 300 girls, find the number of boys.

The correct option is B: 180 Given: Ratio of girls to boys =5:3And, the number of girls =300 Let girls be 5x and boys be 3x ∴5x=300 ( Given ) ⇒x=3005=60 ∴ Number of boys =3x=3×60=180

The ratio of girls to boys in a school is $5 : 3.$ If there are $300$ girls, find the number of boys.

The correct option is B: $180$
Given: Ratio of girls to boys $= 5 : 3$
And, the number of girls $= 300$

Let girls be $5 x$ and boys be $3 x$

$∴ 5 x = 300$ ( Given )

$\Rightarrow x = \frac{300}{5} = 60$

$∴$ Number of boys $= 3 x = 3 \times 60 = 180$