Salaries of A, B and C are in ratio 2:3:5 After increments of 15% ,10% and 20% the new ratio is :
A ) 23:33:60 ✅
B ) 22:32:55
C ) 20:30:50
D ) 24:34:59
SMART RULE
New Ratio = Old Ratio × (100 + % Increase)
Example:
Old Ratio = 2 : 3 : 5
15% increase → 115
10% increase → 110
20% increase → 120
Multiply directly:
A = 2 × 115 = 230
B = 3 × 110 = 330
C = 5 × 120 = 600
New Ratio = 230 : 330 : 600
Divide all by 10:
Final Ratio = 23 : 33 : 60
Shortcut Formula:
If the old ratio is a : b : c, then the new ratio is:
a(100 + x) : b(100 + y) : c(100 + z)
where x%, y%, and z% are the percentage increases.