TO DO PERCENTAGES WE NEED TO REMEMBER SOME FRACTIONS OF THOSE PERCENTAGES:
THEY ARE GIVEN AS
1-100%
1/2-50%
1/3-331/3%
1/4-25%
1/5-20%
1/6-162/3%
1/7-142/7%
1/8-121/2%
1/9-111/9%
1/10-10%
BY OBSERVING WE CAN GET SOME CONCLUSIONS SUCH AS WHEN WE MOVE DOWNWARDS THE CHART THE FRACTION HAS BEEN DECREASING AND WHEN WE MOVE UPWARD THE CHART IT WILL BE INCREASING.SO WE CAN USE THIS PARTICULAR CONCLUSION FOR SOLVING SOME MODELS OF PERCENTAGES:
FOR EXAMPLE:
IF A'S SALARY IS 25% LESS THAN THAT OF B ,THEN HOW MANY PERCENT IS B'S SALARY MORE THAN THAT OF A?
SOL:IT CAN BE DONE VERY EASILY BY OBSERVING ABOVE CHART FOR MORE WE NEED TO MOVE UPWARD ONE STEP IN THE CHART FROM 25% IT WILL BE 331/3%
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