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Ratio and Proportion - General Aptitude

Q1:

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?

A 3 : 3 : 10

B 10 : 11 : 20

C 23 : 33 : 60

D Cannot be determined

ANS:C - 23 : 33 : 60

Let A = 2k, B = 3k and C = 5k.

A's new salary = 115 of 2k = 115 x 2k = 23k
100 100 10
B's new salary = 110 of 3k = 110 x 3k = 33k
100 100 10
C's new salary = 120 of 5k = 120 x 5k = 6k
100 100
New ratio 23k : 33k : 6k = 23 : 33 : 60
10 10