1 The sum of the smallest six-digit number and the greatest five-digit number is: A) 19999 B) 201110 C) 211110 D) 109999
3 If 6x43 - 46y9=1904,which of the following should come in place of x ? A) 4 B) 6 C) 9 D) Cannot be determined E) None of these
5 If a and b are both odd numbers, which of the following is an even number ? A) a + b B) a + b + 1 C) ab D) ab + 2
6 There are four prime numbers written in ascending order. The product of the first three is 385 and that of the last three is 1001. The last number is : A) 11 B) 13 C) 17 D) 19
10 If (12 + 22 + 32 + ..... + 102) = 385, then the value of (22 + 42 + 62 + ..... + 202) is : A) 770 B) 1155 C) 1540 D) 385
12 A number 476**0 is divisible by both 3 and 11. The non-zero digits in the hundredth and tenth place respectively are: A) 7,4 B) 7,5 C) 8,5 D) None of this
13 Which of the following numbers is exactly divisible by all prime numbers between 1 and 17 ? A) 345345 B) 440440 C) 510510 D) 515513
14 The largest natural number which exactly divides the product of any four consecutive natural numbers is : A) 6 B) 12 C) 24 D) 120
15 The least number which must be subtracted from 6709 to make it exactly divisible by 9 is : A) 2 B) 3 C) 4 D) 5
