Q. (51 + 52 + 53 + ------------- 100) is equal to?

Q. If the number 357_25_ is a 7 digit number divisible by both 3 and 5, then the missing digits in the units place and the thousands place respectively are?

Q. 5_2 is a three digit number with _ representing a missing digit. If the number is divisible by 6, then the missing digit is?

Q. Which one of the following numbers is exactly divisible by 11?

Q. What least value must be given to _ so that the number 451_603 is exactly divisible by 9?

Q. The sum of the first 45 natural numbers is?

Q. The sum of the even numbers between 1 and 31 is?

Q. What least value must be assigned to _ so that the number 63576_2 is divisible by 8?

Q. What least value must be assigned to _ so that the number 451_603 is divisible by 9?

Q. Which of the following number is exactly divisible by 24?

Q. If 1_548 is divisible by 3, which of the following digits can replace _?

Q. Which of the following number is exactly divisible by 99?

Q. Which of the following numbers is divisible by all prime numbers between 1 and 17?

Q. The sum of three consecutive odd numbers is always divisible by?

Q. The difference between the squares of two consecutive odd integers is always divisible by?