PREPARATORY QUESTIONS

NUMBER SEQUENCES

PREPARATORY SET-86

Directions (Qs.1 to 5): The following questions are based on the five three-digit numbers given below:

 

568   378   654   496   476

 

Question No : 1

What will be the resultant if third digit of the highest number is subtracted from the second digit of the smallest number?

(1) 2

(2) 5

(3) 4

(4) 3

(5) 1

Question No : 2

If in all the numbers the position of first digit is interchanged with the third digit within the number, how many numbers thus formed will be divisible by 5?

(1) Two

(2) One

(3) Three

(4) More than three

(5) None

Question No : 3

If all the digits in each number are arranged in descending order within the number and the numbers thus formed are arranged in descending order from left to right, which of the following will be the third number from the left end?

(1) 476

(2) 568

(3) 378

(4) 496

(5) 654

Question No : 4

If ‘1’ is subtracted from every even digit in each of the numbers, in how many numbers thus formed will a digit appear twice?

(1) None

(2) One

(3) Two

(4) Three

(5) More than three

Question No : 5

If ‘2’ is added to the first digit of each number and ‘2’ is subtracted from the middle digit and third digit of each number, the sum of digits of how many numbers thus formed will be equal to 17?

(1) Four

(2) None

(3) Two

(4) One

(5) Three