Question

Question 6
On arranging the digits of each number in descending order, which of the following will be the middle digit of the second lowest new number? 563, 284, 372, 49

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Answer 1

Answer:

49,563,372,284 this is right answer

Answer 2

Answer:

Form the greatest and the smallest 4 digit numbers using the given digits without repetition

(i) 3, 7, 2 and 5

(ii) 6, 1, 4 and 9

(iii) 7, 0, 4 and 2

(iv) 1, 8, 5 and 3

(v) 9, 6, 0 and 7

Solution

Transcript

Solution :

(i) The given digits are 3,7,2 and 5 :

(a) The greatesst 4 digit number = 7532

(b) And the smallest 4 digit number =2357

(ii)The digits are given ; 6,1,4 and 9 :

(a) The greatesst 4 digit number = 9641

(b) And the smallest 4 digit number =1469

(iii) The digits are given 7,0,4 and 2 :

(a) The greatesst 4 digit number = 7420

(b) And the smallest 4 digit number =2047

(iv) The digits are given 1,8,5 and 3 :

(a) The greatesst 4 digit number = 8531

(b) And the smallest 4 digit number =1358

(v) The digits are given 9,6,0 and 7 :

(a) The greatesst 4 digit number = 9760

(b) And the smallest 4 digit number =6079