Three friends (Sam, Jerry and Guy) are employees of a company. Their respective salaries are in the ratio of 2 : 5 : 7. Jerry and Guy's salaries together is Rs. 6600. By what percent is Guy's salary than that of Sam?  Pick one
A) 250%	B) 200%	C) 150%	D) 350%	E) 110%
Explanation:   Let the salaries of A, B, C be 2x, 5x and 7x respectively.   Then,5x + 7x = 6600 =&gt; x = 550.   Sam's salary = Rs. 1100, , Jerry's salary = Rs. 2750, and Guy's salary Rs. 3850.   Excess of Guy's salary over Sam's=[ (2750 /1100) x 100] = 250%.   250%nswer: 250%
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Three friends (Sam, Jerry and Guy) are employees of a company. Their respective salaries are in the ratio of 2 : 5 : 7. Jerry and Guy's salaries together is Rs. 6600. By what percent is Guy's salary than that of Sam?