Quiz Discussion

Find the greatest number that will divide 55, 127 and 175 so as to leaves the same remainder in each case

• 1]

  1

• 2]

  16

• 3]

  24

• 4]

  15

The greatest number which on dividing 1657 and 2037 leaves remainders 6 and 5 respectively is

• 1]

  271

• 2]

  172

• 3]

  721

• 4]

  127

The sum of two numbers is 528 and their HCF is 33. The number of such pairs is :

• 1]

  2

• 2]

  3

• 3]

  4

• 4]

  5

Product of two coprime numbers is 117, then their LCM is

• 1]

  9

• 2]

  13

• 3]

  39

• 4]

  117

HCF of 3240, 3600 and a third number is 36 and their LCM is 2⁴×3⁵×5²×7² Then the third number is

• 1]

  2²×3⁵×7²

• 2]

  2²×5³×7²

• 3]

   

  2²×5²×7²

• 4]

  2³×3⁵×7²

The product of two numbers is 2028 and their HCF is 13. The number of such pairs is :

• 1]

  1

• 2]

  2

• 3]

  3

• 4]

  4

Find the LCM of 2/3, 3/5, 4/7 and 9/13.

• 1]

  36

• 2]

  1/36

• 3]

  1/1365

• 4]

  12/455

What is the least number which when divided by 5, 6, 7 and 8 leaves a remainder 3, but when divided by 9 leaves no remainder?

• 1]

  1108

• 2]

  1683

• 3]

  2007

• 4]

  3363

The L.C.M. of two numbers is 48. The numbers are in the ratio 2:3. Then sum of the number is:

• 1]

  40

• 2]

  50

• 3]

  60

• 4]

  35

The LCM of two numbers is 495 and their HCF is 5. If the sum of the numbers is 100 then their difference is:

• 1]

  10

• 2]

  46

• 3]

  70

• 4]

  90