The salaries \(A, B, C\) are in the ratio \(2 : 3 : 5.\) If the increments of \(15\)%, \(10\)% and \(20\)% are allowed respectively in their salaries, then what will be new ratio of their salaries?
Answer: C
Let \(A = 2k, B = 3k\) and \(C = 5k.\)
\(A's\) new salary \(= \frac{115}{100}\) of \(2k = (\frac{115}{100} \times 2k) = \frac{23k}{10}\)
\(B's\) new salary \(= \frac{110}{100}\) of \(3k = (\frac{110}{100} \times 3k) = \frac{33k}{10}\)
\(C's\) new salary \(= \frac{120}{100}\) of \(5k = (\frac{120}{100} \times 5k) = 6k\)
\(\therefore\) New ratio \((\frac{23k}{10} : \frac{33k}{10} : 6k) = 23 : 33 : 60\)