52 is to be divided into two parts such that the sum of 10 times the first and 22 times the second is 780. The bigger part is :  Choose the correct choice from the following answers
A) 30.33 B) 34.44 C) 26.1 D) 28.0 E) 21.0
Explanation:   Let the two parts be (52 - x) and x.   Then, 10 (52 - x) + 22x = 780   =&gt; 12x = 260   =&gt; x = 21.66.   Bigger part = (52 - x) = 30.33.   30.33nswer: 30.33) 30.33
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52 is to be divided into two parts such that the sum of 10 times the first and 22 times the second is 780. The bigger part is :