Multiple choice

The monthly incomes of A, B and C are in the ratio 3 : 4 : 5, while their savings are in the ratio 1 : 2 : 3. If the savings of A are Rs. 600 per month, which is equivalent to 10% of his income, then how much does C spend per month?

  1. Rs. 6,600

  2. Rs. 8,200

  3. Rs. 9,000

  4. Rs. 7,500

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A's income: 600 is 10%, so income = 6000. Ratio 3:4:5 means A=6000, B=8000, C=10000. Savings ratio 1:2:3. A's savings = 600, so B=1200, C=1800. C's spend = Income - Savings = 10000 - 1800 = 8200.

AI explanation

Since A's savings of Rs. 600 represent 1 part of the savings ratio and equal 10 percent of his income, A's total monthly income is 600 times 10, which equals Rs. 6,000. Because A's income represents 3 parts in the 3 : 4 : 5 ratio, one part of income equals 6,000 divided by 3, which is Rs. 2,000; C's income is 5 parts, totaling 5 times 2,000, which equals Rs. 10,000. C's savings represent 3 parts in the 1 : 2 : 3 ratio, so because A's savings are Rs. 600 for 1 part, C's savings are 3 times 600, totaling Rs. 1,800; subtracting this from C's income gives 10,000 minus 1,800, meaning C spends Rs. 8,200 per month.

Keep practicing — related questions