Quiz Discussion

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

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

• 1]

  36

• 2]

  1/36

• 3]

  1/1365

• 4]

  12/455

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

 What is the greatest number which when subtracted from 3000, is exactly divisible by 7, 11 and 13 ?

• 1]

  1999

• 2]

  3000

• 3]

  10001

• 4]

  3050

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

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 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

(4⁶¹+4⁶²+4⁶³+4⁶⁴) is divisible by

• 1]

  17

• 2]

  3

• 3]

  11

• 4]

  13

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

• 1]

  (14,35)

• 2]

  (18,25)

• 3]

  (31,93)

• 4]

  (32,62)

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

• 1]

  271

• 2]

  172

• 3]

  721

• 4]

  127