Question : The ratio of monthly incomes of A and B is 4 : 5 respectively. The ratio of monthly savings of A and B is 14 : 19 respectively. If the monthly expenditure of A and B is INR 1200 each, then what is the difference between the monthly incomes of A and B?
Option 1: INR 2000
Option 2: INR 4000
Option 3: INR 1000
Option 4: INR 5000
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: INR 1000
Solution : Given: The ratio of monthly incomes of A and B is 4: 5 respectively. The ratio of monthly savings of A and B is 14: 19 respectively. Let the ratio of monthly incomes of A and B be $4x: 5x$ respectively. Let the ratio of monthly savings of A and B be $14y: 19y$ respectively. Income = Saving + Expenditure According to the question, $4x=14y+1200$ (equation 1) $5x=19y+1200$ (equation 2) Subtract equation (1) from equation (2), $5x–4x=19y+1200–(14y+1200)$ ⇒ $x=19y+1200–14y–1200$ ⇒ $x=5y$ (equation 3) Substitute the above value in the equation (1), $4\times 5y=14y+1200$ ⇒ $20y=14y+1200$ ⇒ $6y=1200$ ⇒ $y=$ INR 200 From equation (3), $x=5\times 200=$ INR 1000. The difference between the monthly incomes of A and B $=5x–4x=x=$ INR 1000 Hence, the correct answer is INR 1000.
Candidates can download this ebook to know all about SSC CGL.
Admit Card | Eligibility | Application | Selection Process | Preparation Tips | Result | Answer Key
Question : A and B have their monthly incomes in the ratio of 8 : 5, while their monthly expenditures are in the ratio of 5 : 3. If they have saved INR 12,000 and INR 10,000 monthly, respectively, then the difference in their monthly incomes is:
Question : Avinash's monthly salary is INR 50,000 and his monthly expenditure is INR 18,000. Radha's monthly salary is INR 60,000 and her monthly expenditure is INR 24,000. Find the ratio of Radha's savings to Avinash's savings.
Question : The ratio of the incomes of two employees is 7 : 4, and the ratio of their expenditures is 3 : 1. If each of them manages to save INR 4800 per month, find the sum of their monthly incomes (in INR).
Question : The monthly income of a person was INR 12,000 and his monthly expenditure was INR 8,000. Next year, his income increased by 10% and his expenditure by 8%. Find the percentage increase in his savings.
Question : The ratio of the monthly incomes of X and Y is 5 : 4 and that of their monthly expenditures is 9 : 7. If the income of Y is equal to the expenditure of X, then what is the ratio of the savings of X and Y?
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile