Mathematical Series Questions for Competitive Exams

A six digit number is formatted by repeating a three digit number: for example, 256, 256 or 678, 678 etc. Any number of this form is always exactly divisible by:

Find the HCF of 306, 204 and 136.

The greatest number, which when subtracted from 5834, gives a number exactly divisible by each of 20, 28, 32 and 35, is 

The least number which when divided by 4, 6, 8, 12 and 16 leaves a remainder of 2 in each case is: 

The smallest perfect square divisible by each of 6, 12 and 18 is : 

Three men step off together from the same spot. Their steps measure 63 cm, 70 cm and 77 cm respectively. The minimum distance each should cover so that all can cover the distance in complete steps is 

The sum of two numbers is 84 and their HCF is 12. Total number of such pairs of number is 

Two numbers are in the ratio 3 : 4. Their LCM is 84 . The greater number is: 

The HCF and LCM of two numbers are 44 and 264 respectively. If the first number is divided by 2, the quotient is 44. The other number is:

The area of triangle is half the area of square. The perimeter of the square is 224 cm. What is the area of triangle?