PREPARATORY QUESTIONS

NUMBER SEQUENCES

PREPARATORY SET-92

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

 

395   432   823    657   278

 

Question No : 1

The positions of the first and the second digits of each of the numbers are interchanged. What will be the resultant if first digit of highest number thus formed is divided by the third digit of the lowest number thus formed?

(1) 3

(2) 1

(3) 4

(4) 1.5

(5) 2.5

Question No : 2

If ‘2’ is subtracted from the third digit of every odd number and ‘1’ is added to the second digit of every even number. In how many numbers will a digit appear twice?

(1) Two

(2) Three

(3) Four

(4) One

(5) None

Question No : 3

What will be the resultant if third digit of the lowest number and second digit of the highest number are multiplied?

(1) 21

(2) 4

(3) 54

(4) 12

(5) 16

Question No : 4

If all the numbers are arranged in ascending order from left to right, which of the following will be sum of all the three digits of the number which is fourth from the left?

(1) 13

(2) 18

(3) 9

(4) 17

(5) 15

Question No : 5

If in each number all the digits are arranged in descending order from the left to right with in the number, how many odd numbers will be formed?

(1) One

(2) None

(3) Two

(4) Three

(5) Four