the number of students in each section a school is 24 after..., Simplification, General Mathematics

Question:The number of students in each section of a school is `24`.After admitting new student,three new sections were started. Now the total number of section is `16`and there are 21 students in each section.The number is new students admitted is ;

A `24` 
B `14` 
C `48` 
D ``114`

/94

+ AnswerA

+ ExplanationOriginal number of section 

`= (16 - 3) = 13`

Original number of student 

`= (24 xx 13) = 312`.

Present number of students 

`= (21 xx 16) = 336`.

Number of new students admitted 


`= (336 - 312) = 24`

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