Question

Rohan brought a pack of 100 chocolate on his birthday to distribute in his class After giving two chocolate to each student and his class teacher he is left with ten chocolate. How many students are there in the class?

Answer 1

Let the no. of chocolates given be x.

A/q, 

                100 - x = 10
⇒   100- 10 = x
⇒   90 = x
∴ x = 90
  So, chocolate was given to 90/2 = 45 people
          But, there was one teacher also.
So, no. of students = 45-1 = 44
          

Answer 2

Let the no. of chocolates be x then,
ATQ,
100-x=10
x=100-10
x=90
.°. Chocolates was given to 90/2 =45 people
But there was one teacher also.
.°.No. of chocolates given to students=45-1=44