Practice Problems on Numbers – How many 6-digit even numbers can be formed from the digits 1, 2, 3, 4, 5, 6 and 7 so that the digits should not repeat and the second last digit is even?
Practice Problems on Numbers – A man visits a shopping mall almost every day and he walks up an up-going escalator that connects the ground and the first floor. If he walks up the escalator step by step it takes him 16 steps to reach the first floor. One day he doubles his stride length (walks up climbing two steps at a time) and it takes him 12 steps to reach the first floor. How many Steps are there?
Practice Problems on Numbers – If 105 is represented as 253 in base 6, how is 253 represented in base 6?
Practice Problems on Numbers – A software engineer creates a LAN game where an 8 digit code made up of 1,2,3,4,5,6, 7,8 has to be decided on as a universal code. There is a condition that each number has to be Used and no number can be repeated. What is the probability that first 4 digits of the code are even number?
Practice Problems on Numbers – There is a escalator and 2 persons move down it.A takes 50 steps and B takes 75 steps while the escalator is moving down.Given that the time taken by A to take 1 step is equal to time taken by B to take 3 steps.Find the no. of steps in the escalator while it is staionary?
Practice Problems on Numbers – How many six digit phone numbers can you frame using the digits from 0 to 9 if a condition restricts you to start the number with 35 and another condition restricts you from using any digit more than once?
Practice Problems on Numbers – the two numbers (23__)^32 and (12__)^ 33 has 6 in the last digit. What is the missing digit?
Practice Problems on Numbers – The mean temperature of Monday to Wednesday was 37°C and of Tuesday to Thursday was 34°C. If the temperature on Thursday was 4 / 5th that of Monday, the tempearture on Thursday was :
Practice Problems on Numbers – Don and his wife each receive an 8 percent annual raise. If don receives a raise rs.800 and his wife receives a raise of rs. 840, what is the difference between their annual income after their raises?
Practice Problems on Numbers – I had about Rs.14.40 in one rupee coins and 20 paise coins when I went out for shopping. When I returned, I found that number of 20 paise coins and 1 rupee coins are exactly as 1 rupee and 20 paise coins respectively, that I had originally. I came back with one third of what I had started out with. How many one rupee coins did I have initially?
Practice Problems on Numbers – Number of Weights needed for weighing 1 to 40 kgs?
Practice Problems on Numbers – A student is ranked 13th from right and 8th from left. How many are there?
Practice Problems on Numbers – The sum of the digits of a two digit number is 8. If the digits are reversed the number is decreased by 54. Find the number.
Practice Problems on Numbers – If 35 people play hockey and 10 people play both football and hockey and if 10 people play hockey and cricket and 5 people play all three games then the number of people playing hockey alone is?
Practice Problems on Numbers – When 2256 is divided by 17 the remainder would be?