The income of Raju is 25% more than that of Manju. Raju got a 25% rise in his income, and Manju got a 40% rise in his income, the percentage increase in their combined incomes is:
Answer & explanation
Correct answer: option 2
Given :-
income of Raju is 25% more than that of Manju
25 % = \(\frac{5}{4}\)
Ratio of income of Raju & Manju = 5 : 4
Let income of Raju = 500 & Income of Raju = 400
New income of Raju = 500 + \(\frac{1}{4}\) × 500 = 625
New income of Manju = 400 + \(\frac{2}{5}\) × 400 = 560
New combined income = 625 + 560 = 1185
Increase in combined income = 1185 - 900 = 285
Required percentage = \(\frac{285}{900}\) × 100 = 31.67%