PREPARATORY QUESTIONS

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NUMBER SEQUENCES

PREPARATORY SET-68

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

 

645   826   721   395   548

 

Question No : 1

What will be the difference when second digit of the 3rd lowest number is multiplied with the first digit of the highest number and first digit of the 2nd highest number is multiplied with the second digit of the lowest number?

(1) 21

(2) 30

(3) 31

(4) 26

(5) None of these

Question No : 2

If all the digits in each of the numbers are arranged in increasing order within the number then, which of the following number will become the lowest in the new arrangement of numbers?

(1) 826

(2) 395

(3) 645

(4) 721

(5) 548

Question No : 3

If one is added to the third digit of each of the numbers and one is subtracted to the second digit of each number then, how many numbers thus formed will be completely divisible by two in new arrangement?

(1) Three

(2) One

(3) None

(4) Two

(5) Four

Question No : 4

If all the numbers are arranged in decreasing order from right to left then, which of the following will be the sum of all the three digits of the number which is 4th from the left in the new arrangement?

(1) 10

(2) 15

(3) 16

(4) 17

(5) None of these

Question No : 5

If the positions of the first and the third digits of each of the numbers are interchanged then, how many even numbers will be formed?

(1) One

(2) Two

(3) Three

(4) None

(5) Four