Three friends (Fred, James and Kelly) are employees of a company. Their respective salaries are in the ratio of 4 : 6 : 7. James and Kelly's salaries together is Rs. 8840. By what percent is Kelly's salary than that of Sarah?  Answers:	A) 40%	B) 60%	C) 90%	D) 70%	E) 80%
Explanation:   Let the salaries be 4x, 6x and 7x respectively.   Then,6x + 7x = 8840 =&gt; x = 680.   Fred's salary = Rs. 2800, James's salary = Rs. 4080, and Kelly's salary Rs. 4760.   Excess of Kelly's salary over Fred's=[ (1960 /2800) x 100] = 70%.   Answer: 70%
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Three friends (Fred, James and Kelly) are employees of a company. Their respective salaries are in the ratio of 4 : 6 : 7. James and Kelly's salaries together is Rs. 8840. By what percent is Kelly's salary than that of Sarah?