The ratio of the number of boys to the number of girls in a hall was 12 : 7 If there were 147 girls in the hall, how many more boys than girls were there

Answers (1)
S safeer

The ratio of the number of boys to the number of girls = 12/7

given there were 147 girls, that is if x number of people are there then 7/19 parts are girls, so

\\\frac{7}{19}x=147\\\\x=\frac{19\times147}{7}=19\times21=399

There were a total of 329 people out of which 147 are girls. So the number of boys = 399-147 = 252 boys

 

Preparation Products

JEE Main Rank Booster 2021

This course will help student to be better prepared and study in the right direction for JEE Main..

₹ 13999/- ₹ 9999/-
Buy Now
Rank Booster NEET 2021

This course will help student to be better prepared and study in the right direction for NEET..

₹ 13999/- ₹ 9999/-
Buy Now
Knockout JEE Main April 2021 (Easy Installments)

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 4999/-
Buy Now
Knockout NEET May 2021

An exhaustive E-learning program for the complete preparation of NEET..

₹ 22999/- ₹ 14999/-
Buy Now
Knockout NEET May 2022

An exhaustive E-learning program for the complete preparation of NEET..

₹ 34999/- ₹ 24999/-
Buy Now
Exams
Articles
Questions