1 Which of the following can be a product of two 3-digit numbers **3 and **8 ? A) 1010024 B) 991014 C) 9124 D) None of these
2 A boy multiplies 987 by a certain number and obtains 559981 as his answer. If in the answer, both 9's are wrong but the other digits are correct, then the correct answer will be : A) 553681 B) 555181 C) 555681 D) 556581
3 When a certain number is multiplied by 13, the product consists entirely of fives. The smallest such number is : A) 41625 B) 42135 C) 42515 D) 42735
6 How many numbers between 400 and 600 begin with or end with a digit of 5 ? A) 40 B) 100 C) 110 D) 120
11 How many of the following numbers are divisible by 3 but not by 9 ? 2133, 2343, 3474, 4131, 5286, 5340, 6336, 7347, 8115, 9276 A) 5 B) 6 C) 7 D) None of these
13 The number 311311311311311311311 is : A) divisible by 3 but not by 11 B) divisible by 11 but not by 3 C) divisible by both 3 and 11 D) neither divisible by 3 nor by 11
14 A 4-digit number is formed by repeating a 2-digit number such as 2525, 3232 etc. Any number of this form is exactly divisible by : A) 7 B) 11 C) 13 D) smallest 3-digit prime number
15 The difference between the squares of two consecutive odd integers is always divisible by : A) 3 B) 6 C) 7 D) 8
