JEE Main & Advanced
Mathematics
Permutations and Combinations
Question Bank
Numerical Value Type Questions - Permutation and Combination
question_answer
A teacher takes three children from her class to the zoo at a time, but she does not take the same children to the zoo more than once. She finds that she went to the zoo 84 times more them a particular child has gone to the zoo. Find the number of children in her class.