The cost of a scooter depreciates every year by 15% of its value at the beginning of the year. If the present cost of the scooter is ₹ 8,000, find its cost :

(i) after one year

(ii) after 2 years.

In an examination, the pass mark is 40%. If a candidate gets 65 marks and fails by 3 marks; find the maximum marks.

In an objective type paper of 150 questions, John got 80% correct answers and Mohan got 64% correct answers.

(i) How many correct answers did each get ?

(ii) What percent is Mohan's correct answers to John's correct answers ?

The number 8,000 is first increased by 20% and then decreased by 20%. Find the resulting number.