Question

If rank of a student from last is 17th and 15th from
beginning, then how many students are there?
(1) 31 (2) 32
(3) 33 (4) 17

Answer 1

(17+15)-1
=32-1
=31

Answer: (1) 31

Answer 2

Answer:

the write ans to this is option (1) 31

Step-by-step explanation:

formula used here is

no. of students=  (rank of student from beginning + rank of student from last) -1

so by filling the values we get,

no. of students=17+15 - 1 = 32 - 1 = 31

we are subtracting 1 in the formula so that we are not counting the student (whose rank is mentioned) twice in the solution.

hope it helps you.....