Quiz Discussion

Which of the following has the most number of divisors?

• 1]

  99

• 2]

  101

• 3]

  176

• 4]

  182

Three numbers are in ratio 1 : 2 : 3 and HCF is 12. The numbers are:

• 1]

  12, 24, 36

• 2]

  11, 22, 33

• 3]

  12, 24, 32

• 4]

  5, 10, 15

The LCM and HCF of two numbers are 84 and 21, respectively. If the ratio of the two numbers is 1 : 4, then the larger of the two numbers is

• 1]

  12

• 2]

  48

• 3]

  84

• 4]

  108

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 H.C.F. and L.C.M. of 0.63, 1.05 and 2.1

• 1]

  0.20 and 6.31

• 2]

  0.21 and 5.30

• 3]

  0.21 and 6.30

• 4]

  1.21 and 6.50

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

(4⁶¹+4⁶²+4⁶³+4⁶⁴) is divisible by

• 1]

  17

• 2]

  3

• 3]

  11

• 4]

  13

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

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

• 1]

  (14,35)

• 2]

  (18,25)

• 3]

  (31,93)

• 4]

  (32,62)