Whole numbers Worksheet







Mathematical Puzzles and Solutions

 word problems on whole numbers

Questions

  1. Find the number which, when divided by 23, gives 87 as the quotient and leaves 17 as the remainder.
  2. Which least number should be added to 7,000 so that the sum is exactly divisible by 22?
  3. Find the largest 4-digit number which is exactly divisible by 35.
  4. Find the number which, when divided by 51, gives 32 as the quotient and leaves 28 as the remainder.
  5. What should be subtracted from 16,000 to make it exactly divisible by 89?
  6. Find the smallest 6-digit number which is exactly divisible by 123.
  7. What is the sum of all even numbers between 40 and 60?
  8. Find the least common multiple (LCM) of 14 and 28.
  9. A cyclist covers a distance of 120 miles at a constant speed. If the speed had been 5 miles per hour more, it would have taken 1 hour less. Find the original speed of the cyclist.
  10. What is the product of all prime numbers between 2 and 10?
  11. Find the number which, when divided by 144, gives 35 as the quotient and leaves 58 as the remainder.
  12. Find the smallest 5-digit number which is exactly divisible by 172.
  13. What is the sum of all the multiples of 7 between 20 and 100?
  14. What is the least number that should be subtracted from 8,650 to make it exactly divisible by 27?
  15. Find the greatest common divisor (GCD) of 180 and 250.
  16. Find the number which, when divided by 81, gives 47 as the quotient and leaves 51 as the remainder.
  17. What should be added to 4,389 to make it exactly divisible by 31?
  18. Find the smallest 6-digit number which is exactly divisible by 258.
  19. What is the sum of all odd numbers between 51 and 75?
  20. Find the largest 6-digit number which is exactly divisible by 137.

Consolidated Answers

  1. The number is (87 * 23) + 17 = 2018.
  2. The least number to be added to 7,000 is 6.
  3. The largest 4-digit number exactly divisible by 35 is 9975.
  4. The number is (32 * 51) + 28 = 1660.
  5. 53 should be subtracted from 16,000 to make it exactly divisible by 89.
  6. The smallest 6-digit number exactly divisible by 123 is 100098.
  7. The sum of all even numbers between 40 and 60 is 550.
  8. The LCM of 14 and 28 is 28.
  9. The original speed of the cyclist was 15 miles per hour.
  10. The product of all prime numbers between 2 and 10 is 210.
  11. The number is (35 * 144) + 58 = 5138.
  12. The smallest 5-digit number which is exactly divisible by 172 is 10044.
  13. The sum of all the multiples of 7 between 20 and 100 is 567.
  14. The least number that should be subtracted from 8,650 to make it exactly divisible by 27 is 23.
  15. The GCD of 180 and 250 is 10.
  16. The number is (47 * 81) + 51 = 3848.
  17. 17 should be added to 4,389 to make it exactly divisible by 31.
  18. The smallest 6-digit number which is exactly divisible by 258 is 100026.
  19. The sum of all odd numbers between 51 and 75 is 819.
  20. The largest 6-digit number which is exactly divisible by 137 is 999966.



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