Question

from our class 7 out of 150 students 90 students and from 140 students of class 6 80 students participated in sit and draw competition let's find the ratio which class have greater participation ​

Answer 1

Answer:

class 7- 90/150=3/5=21/35

class 6- 80/140=4/7=20/35

ratio= 21/35:20/35= 21:20

participation of class 7 to calss 6 is 21:20.

Answer 2

Ratio of Class 6 : Class 7 is 20 : 21.

Class 7 have greater participation.

Given

To find the ratio which class have greater participation.

There are two class, Class 6 and Class 7 participating in sit and draw competition.

Class 6 -----> Out of 140 students, 80 students participated.

                     80 / 140 = 4 / 7

                     Class 6  = 4 / 7

Class 7 -----> Out of 150 students, 90 students participated.

                      90 / 150 = 3 / 5

                      Class 7   = 3 / 5

               Class 6  = 4 / 7             Class 7   = 3 / 5

Taking L.C.M for the values 4 / 7 and 3 / 5, gives 35.

                             $\frac{4}{7}$ × $\frac{5}{5}$ = $\frac{20}{35}$

                             $\frac{3}{5}$ × $\frac{7}{7}$ = $\frac{21}{35}$

Hence, the ratio is 20 : 21

Therefore, Class 7 has greater ratio, so in Class 7 student participation is high.

To learn more...

1. brainly.in/question/14579299

2. brainly.in/question/1407616