Num Sys

If a number is divided by 899, the remainder is 63. If the same number is divided by 29, the remainder be:

• 4

• 10

• 5

• 2

Two numbers are in the ratio 3 : 4. If their LCM is 240, the smaller of two number is

• 100

• 80

• 60

• 50

The highest power of 17 which can divide exactly the following: (18^2 - 1) (18^4 - 1) (18^6 - 1) (18^8 - 1) . . . . (18^16 - 1) (18^18 - 1) is :

• 1

• 17

• 9

• 13

If 146! Is divisible by 5^n, and then find the maximum value of n.

• 34

• 35

• 36

• 37

Find unit digit of product (173)^45 × (152)^77 × (777)^999.

• 2

• 4

• 6

• 8

The greatest number, which when subtracted from 5834, gives a number exactly divisible by each of 20, 28, 32, 35 is.

• 1120

• 4714

• 5200

• 5600

How many pairs of natural numbers is there the difference of whose squares are 45.

• 1

• 2

• 3

• 4

How many of the factors of 256 are perfect squares?

• 5

• 6

• 4

• 3

N=12345678..............................(283digits)

Find the remainder when 'N' is divided by 125 ?

• 1

• 51

• 11

• 2

• 101

0.393939................is equivalent to?

• 39/100

• 13/33

• 93/100

• 39/990