Question
The income of 'B' exceeds 'A's income by 15%, and they
spend in the ratio of 5:6, respectively. The income of 'A' surpasses 'B's expenditure by Rs. 1,000. Additionally, 'A' manages to save Rs. 100 more than 'B'. Determine the income of 'A'.Solution
Let, the income of 'A' be Rs. '20x'. So, the income of 'B' = 1.15 X 20x = Rs. '23x' Let, the expenditure of 'A' and 'B' be Rs. '5y' and Rs. '6y', respectively. According to the question, 20x - 5y = 23x - 6y + 100 Or, y - 3x = 100 ....(i) Also, 20x - 6y = 1000 Or, 10x - 3y = 500 ....(ii) Multiple equation (i) with 3 and add it with equation (ii) , we get, 10x - 3y + 3y - 9x = 500 + 300 Or, x = 800 So, the income of 'B' = 20x = 20 X 800 = Rs. 16,000 Hence, option d.
A man invests ₹30,000 in a scheme offering compound interest at 15% per annum, compounded half-yearly. Another man invests ₹35,000 in a scheme offer...
Find the compound interest on Rs. 8000 at 12% per annum for 2 years (compounded annually).
A sum of ₹33,100 was divided between Timir and Monali in such a way that if both invested their shares at 10% compound interest per annum, the amount ...
Find the compound interest on Rs. 10,000 at 10% per annum for 2 years, compounded annually.
Krishna lends ₹48000 to Neelam for a year at 25% interest per annum, compounded half yearly. Find the interest that must be paid by Neelam.
A Bank came up with an interesting investment plan under which it would offer 6% interest compounded half-yearly. Mr. 'X' deposited ₹ 80000 once at th...
The compound interest on Rs. 30,000 at 7%per annum for n years is Rs. 4347. The value of n is
Michael has read 3/4 of a book, while Anna has read only 2/3 of the book she is reading. Both, however, have another 90 pages of their respective books...
Divide Rs. 2,440 into two parts such that the first part after 10 years is equal to the second part after 8 years, compound interest being 20% per annum...
A sum of ₹10000 is invested at compound interest for 2 years. If the interest rate is 5% per annum, what is the total amount after 2 years?