1. A sequence of 4 digits, when considered as a number in base 10 is four times the number it represents in base 6. What is the sum of the digits of the sequence?
(1) 7
(2) 6
(3) 9
(4) 8
2. Some friends planned to contribute equally to jointly buy a CD player. However, two of them decided to withdraw at the last minute. As a result, each of the others had to shell out one rupee more than what they had planned for. If the price (in Rs.) of the CD player is an integer between 1000 and 1100, find the number of friends who actually contributed?
(1) 21
(2) 23
(3) 44
(4) 46
3. If N = 888Dup to 100 digits, what is the remainder when N is divided by 625?
