It's Shreya's Birthday. There are 20 students in her class, numbered 1 to 20. She gives 8 chocolates to student 1, 10 more than 8 chocolates to student 2, and progresses in such a way that each succeeding student gets 10 chocolates more than each preceding student. What is the exact number of chocolates Shreya needs to buy such that the chocolates are exactly sufficient?
The maximum number of students among whom 1001 pens and 910 pencils can be distributed in such a way that each student gets equal number of pens and pencils is -