PREPARATORY QUESTIONS

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NUMBER SEQUENCES

PREPARATORY SET-89

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

 

356   497   812   739   264

 

Question No : 1

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

(1) 14

(2) 19

(3) 20

(4) 11

(5) 12

Question No : 2

What will be the resultant if the third digit of the second lowest number is divided by the third digit of the highest number?

(1) 2

(2) 3

(3) 4

(4) 5

(5) 2.6

Question No : 3

If ‘2’ is subtracted from the last digit of every odd number and ‘1’ is added to the last digit of every even number, what will be the difference between the highest and the lowest numbers thus formed?

(1) 380

(2) 456

(3) 318

(4) 548

(5) 242

Question No : 4

If all the digits in each of the numbers are arranged in descending order within the number, which of the following will form the second highest number in the new arrangement of numbers?

(1) 356

(2) 497

(3) 812

(4) 739

(5) 264

Question No : 5

If the positions of the first and the second digits of each of the numbers are interchanged, in how many numbers thus formed will the first digit be a perfect square? (’1’ is also a perfect square)

(1) One

(2) Two

(3) Three

(4) Four

(5) Five