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Percentage - General Aptitude

Q1:

Two students appeared at an examination. One of them secured 9 marks more than the other and his marks was 56% of the sum of their marks. The marks obtained by them are:

A 39, 30

B 41, 32

C 42, 33

D 43, 34

ANS:C - 42, 33

Let their marks be (x + 9) and x.

Then, x + 9 = 56 (x + 9 + x)
100
 25(x + 9) = 14(2x + 9)  3x = 99  x = 33 So, their marks are 42 and 33.