Question

in a class students give chocolates to other students. if no. of chocolates is 132 then find no. of students with explanation​

Answer 1

$\huge\underline\mathfrak\green{Solution}$

Let the number of student be x

Then each will give n - 1 chocolate to each other

Total no of chocolates = No of student × no of chocolate per child

n ( n - 1 ) = 132

n² - n = 132

n² - n - 132 = 0

n² - 12n + 11n - 132 = 0

n ( n - 12 ) + 11 ( n - 12 ) = 0

n - 12 = 0

n = 12

Hence there are 12 students

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