RRB Maths PYQs - Number System

RRB Maths PYQs - Number System

• Divisibility Rules:
  • Rule for 9: Sum of digits divisible by 9, then number is divisible by 9
  • Rule for 11: Difference between sum of alternate digits divisible by 11, then number is divisible by 11
  • Rule for 8: Last three digits are divisible by 8, then number is divisible by 8
• Problems:
  • Find the number divisible by both 9 and 11 in a given set of options
  • Find the number that is not divisible by 9 in a given set
  • Find the number that is not divisible by 8 in a given set
  • Find the values of x and y if a given 7-digit number is divisible by 11
  • Find the value of 3k+2p if a given 11-digit number is divisible by 72
  • Find the remainder when a given set of numbers is divided by 17
  • Problem example: If the number 171 x 172 x 173 is divided by 17, find the remainder

Question Types

• Divisibility rules - Questions involving the application of divisibility rules for specific numbers
• Number systems - Calculating values and finding unknown variables based on specified conditions and rules.

Test your knowledge of the number system with this quiz focused on divisibility rules. You'll tackle problems involving the numbers 9, 11, and 8, as well as find remainders and values related to divisibility. Perfect for anyone preparing for RRB exams!