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1- 186 x 186 + 159 x 159 - 2 x 186 x 159 =?
2- The number of prime factors of (3 x 5)12 (2 x 7)10 (10)25 is:
3- If (64)2 - (36)2 = 20z, the value of z is:
4- Which of the following numbers is divisible by 3, 7, 9 and 11?
5- 39798 + 3798 + 378 =?
6- A six-digit number is formed by repeating a three-digit number; for example, 256256 or 678678 etc. Any number of this form is always exactly divisible by:
7- The unit's digit in the product (3127)173 is:
8- The number of digits of the smallest number, which when multiplied by 7 gives the result consisting entirely of nines, is:
9- Which of the following numbers is exactly divisible by 99?
10- On dividing a number by 999, the quotient is 366 and the remainder is 103. The number is: