PREPARATORY QUESTIONS

NUMBER SEQUENCES

PREPARATORY SET-32

Direction (Qs.1 to 5): There are five 3-digit numbers as given below:

 

456   784   674   569    457

 

Question No : 1

If first & third digits of all the numbers are interchanged, which of the following number will be second highest number after the rearrangement?

(1) 456

(2) 784

(3) 674

(4) 569

(5) 457

Question No : 2

If each digit within the number is first arranged in descending order, the sum of the first and the third digit of the lowest number will be

(1) 10

(2) 13

(3) 14

(4) 11

(5) None of these

Question No : 3

For all the numbers, if the second digit is increased by 1 & the third digit is decreased by 1, then the sum of the largest and the smallest number is

(1) 1268

(2) 1148

(3) 1358

(4) 1258

(5) None of these

Question No : 4

The difference between the highest digit of the lowest number and the lowest digit of the highest number is?

(1) 3

(2) 5

(3) 2

(4) 4

(5) None of these

Question No : 5

If the sum of all the digits of each number is taken into consideration, which of the following number will be the third highest?

1) 456

(2) 794

(3) 674

(4) 569

(5) 457