A teacher distributes chocolates in three classes A, B and C. In C, each student got 3 chocolates. In class B each student got 2 chocolates. In class A, 3 students did not get any chocolate and rest got one chocolate each. Average number of students in B and C were 48. If the chocolates distributed in class A and B were equal, which of the following cannot be the value of the total number of chocolates distributed in the three classes?

A teacher distributes chocolates in three classes A, B and C. In C, each student got 3 chocolates. In class B each student got 2 chocolates. In class A, 3 students did not get any chocolate and rest got one chocolate each. Average number of students in B and C were 48. If the chocolates distributed in class A and B were equal, which of the following cannot be the value of the total number of chocolates distributed in the three classes? Correct Answer 287

Given:

In C, each student got 3 chocolates. In class B each student got 2 chocolates. In class A, 3 students did not get any chocolate and rest got one chocolate each. Average number of students in B and C were 48. The chocolates distributed in class A and B were equal.

Formula Used:

average = sum of terms/number of terms

Calculation:

Let the number of students in A, B and C be ‘a’, ‘b’ and ‘c’ respectively.

⇒ Number of chocolates in A = (a - 3) × 1 = a - 3

Also, average number of students in B and C = (b + c)/2 = 48

⇒ b + c = 96; c = 96 - b

Total number of chocolates in all class = (a - 3) × 1 + b × 2 + (96 - b) × 3

⇒ a – b + 285

Also, the chocolates distributed in class A and B were equal.

⇒ a – 3 = 2b

⇒ a = 3 + 2b

Total number of chocolates = a – b + 285 = 3 + 2b – b + 285 = b + 288

Minimum of 288 chocolates were distributed.

Related Questions

Each question below is followed by two statements I and II. You have to determine whether the data given in the statements are sufficient for answering the question. You should use the data and your knowledge of Mathematics to choose the best possible answer. What is the average weight of new students added? I. In a class 60% students are male and there average weight is 15 kg more than the female students, 9 males and 6 new female students joined the class and the average weight of the class increased by 0.84 II. Total male students in the class is 12 more than female students adding 9 male students to the class increases the average weight of male students by 1 kg and adding 6 female students increases the average weight of female students by 0.6.