Problems on Numbers

Practice Problems on Trains – A number is increased by 20% and then it is decreased by 10%. Find the net increase or decrease in %

Practice Problems on Numbers – There is a trekking team which takes a halt after 10 hours and the leadership changes after 5 hours. leadership changes in alphabetical order. Kamala is leading now with mary, malti, and sita. Who will lead after two rests.

Practice Problems on Numbers – How many 3 digit numbers formed from 2,3,5,6,7 and 9.Which is divisible by 9 and none of the number is repeated.

Practice Problems on Numbers – A number when divided by 702 generates a remainder 50. Find the remainder when the same number is divided by 39.

Practice Problems on Numbers – The numbers 1, 2, …, 9 are arranged in a 3 X 3 square grid in such a way that each number occurs once and the entries along each column, each row, and each of the two diagonals add up to the same value.If the top left and the top right entries of the grid are 6 and 2, respectively, then the bottom middle entry is

Practice Problems on Numbers – The sum of four consecutive two-digit odd numbers, when divided by 10, becomes a perfect square. Which of the following can possibly be one of these four numbers?

Practice Problems on Numbers – How many even integers n, where 100 ≤ n ≤ 200, are divisible neither by seven nor by nine?

Practice Problems on Numbers – If the sum of five consecutive positive integers is A, then the sum of the next five consecutive integers in terms of A is:

Practice Problems on Numbers – The difference between two numbers is 1365.When the larger number is divided by the smaller one ,the quotient is 6 and the remainder is 15.The smaller number is:

Practice Problems on Numbers – The number of prime factors of (3 x 5)¹² (2 x 7)¹⁰ (10)²⁵ is:

Practice Problems on Numbers – Find the largest number, smaller than the smallest four-digit number, which when divided by 4,5,6 and 7 leaves a remainder 2 in each case.

Practice Problems on Numbers – On dividing a number by 999,the quotient is 366 and the remainder is 103.The number is:

Practice Problems on Numbers – There are four prime numbers written in ascending order of magnitude. The product of first three is 385 and that of last three is 1001. Find the first number.

Practice Problems on Numbers – A bag contains 10-paisa, 20-paisa and 25-paisa coins in the ratio 7:4:3. If the total value is Rs. 90, the number of 25-paisa coins in the bag is:

Practice Problems on Numbers – If |x| + |y| = 7, then what is the sum of minimum and maximum values of x + y?