Question

in a class of 40 students 1/5 of total number of students like to study English 2/5 of total number of students like to study mathematics and remain ing part of the students like to study social science
a) how many student like to study English
b) how many students like to study mathematics
c) how many students like to study social science​

Answer 1

Students like to study english are 1/5×40 =8 student

Students like to study Mathematics 2/5×40 =16 student

remaining student = 40-(8+16) =16 student

student like to study social science is 16 student

Answer 2

                                                                                                                   

• Answer:

                                                                                                                   

(a) =  student who like to study English = 8

(b) = the student who like to study mathematics = 16

(c) = the student who like to study social science = 16

                                                                                                                   

• Step-by-step explanation:

                                                                                                                   

•          (A)

total number of student = 40

Given that :

like to study English = $\frac{1}{5}$

    => student who like to study English = $\frac{1}{5}$ × total student

                                                                  = $\frac{1}{5}$ × 40

                                                         = 8

                                                                                                                   

            (B)

Given that:

the student like to study mathematics = $\frac{2}{5}$

total number of student = 40

=> the student who like to study mathematics = $\frac{2}{5}$ × 40

                                                                  = 16

                                                                                                                   

           (c)

total student  = student like to English + student like to Math + student like social science

put the value

40 = 8 + 16 + student like social science

40 = 24 + student like social science

40 - 24 = student like social science

16 = student like social science

                                                                                                                   

may be it is helpful for you