TRY THESE (KNOWING OUR NUMBERS)

 Find the greatest and the smallest numbers. 

(A) 4536, 4892, 4370, 4452. 

ALL ARE FOUR DIGITS SO HOW WE CAN FIND WHICH IS GREATER ,IN OUR FOUR OPTIONS HAVING SAME DIGIT (FOUR)

WE FIND (100) S PLACE  536 ,892,370,452 WHICH ONE IS SMALL ,AND WHICH ONE IS GREAT

EVERBODY KNOWS 370 SMALL AND 892 GREATER

SO ,4892 IS GREATER

4370 IS SMALLER

(B)GOING FOR NEXT OPTION

(b) 15623, 15073, 15189, 15800. 

IN THIS 2ND PROBLEM 

IN OUR 5 OPTIONS 15 IS COMMON

LET US WRITE 

LEAVE 15 AND

WRITE  623,073,189,800

IN THOSE FOUR OPTIONS WHICH ONE SMALL

73 SMALLER

800 GREATER

(C) 25286, 25245, 25270, 25210.

HAVE A LOOK FOR 3RD PROBLEM 

25 IS COMMON

AND WRITE REMAINING

286,245,270,210

STRAIGHTLY UNDERSTAND  210 IS SMALL

SO WE CAN DESIDE 

25210 IS SMALLER

25270 IS BIGGER

 (D) 6895, 23787, 24569, 24659.

NEXT PROBLEM THOSE FOUR OPTIONS HAVE FOUR DIGITS AND HAVING 5 DIGITS

SO EASILY WILL FIND

6895 IS SMALL

REMAINING 3 OPTIONS 23787, 24569, 24659. LEFT TO SEE FIRST 2 DIGITS 23,24,24

23 IS SMALLER

24 IS BIGGER

LET US WRITE 24569,24659

LEAVE 24

AND WRITE 569 AND 659

WHICH IS SMALL 

EVERBODY KNOWS 

569 IS SMALLER

659 IS BIGGER 

 ANSWER IS 24659 IS BIG

6895 IS SMALL