Percent Change
Two numbers and are 20% and 28% less than the third number respectively. By what percentage is the number less than the number ?
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1 solution
Let us assign d the value x. b and c are 20 & 28% lesser than d respectively. Thus b=80% of x = 0.8x Likewise, c=0.72x Difference in % =100* (0.8-0.72)/0.8 = 10%