Quiz Discussion

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

• 1]

  271

• 2]

  172

• 3]

  721

• 4]

  127

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

How many numbers are there between 2000 and 4000 which are divisible by 2,3,4 and 5?

• 1]

  32

• 2]

  33

• 3]

  34

• 4]

  35

Which of the following is a pair of co-primes?

• 1]

  (14,35)

• 2]

  (18,25)

• 3]

  (31,93)

• 4]

  (32,62)

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 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

The H.C.F and L.C.M of two numbers are 11 and 385 respectively. If one number lies between 75 and 125 , then that number is

• 1]

  77

• 2]

  88

• 3]

  99

• 4]

  110

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

Which of the following has the most number of divisors?

• 1]

  99

• 2]

  101

• 3]

  176

• 4]

  182