PREPARATORY QUESTIONS

NUMBER SEQUENCES

PREPARATORY SET-10

Direction (Qs.1 to 5): Study the following arrangement carefully and answer the questions given below:

 

7  9  4  1  3  2  8  6  9  5  7  4  8  2  1  3  7  4  2  6  8  3  5  1  6  7  4  9  2  1  3  2

(While answering some of the questions please note that 1 is also a perfect square)

 

Question No : 1

How many 2’s are there in the given arrangement each of which is immediately followed by a digit which is a multiple of 3?

(1) Three 

(2) Two  

(3) None

(4) One

(5) More than three

Question No : 2

What will be the resultant if the digit that is eighth from the left end is subtracted from the digit that is sixth from the right end?

(l) 5  

(2) – 2

(3) 3

(4) 6

(5) 8

Question No : 3

How many such perfect squares are there in the given arrangement which is immediately preceded by an odd number (each digit to be counted as many times as it appears)?

(1) Two

(2) Six

(3) Five

(4) None

(5) Four

Question No : 4

If all the 5’s are deleted, then which of the following will be fourth from the right end?

(1) 2

(2) 4

(3) 6

(4) 9

(5) 5

Question No : 5

What is the sum of the digits that are at the third, the sixth and the eleventh positions from the left end?

(1) 19

(2) 21

(3) 16

(4) 24

(5) 13