Question
When the interest accrued on a certain principal amount
over four years is 4/9 times the interest earned on the same principal amount after another four years, and the annual interest rate is denoted as r%, what is the value of 'r'?Solution
ATQ, Let the amount be Rs. ‘100X’. So, [100X × 4 × r/100 ]= [(4/9) × (100X + 100X × 4 × r/100) Or, 4Xr = (4/9) × (100X + 4Xr) Or, 4r = (4/9) × (100 + 4r) Or, 36r = 400 + 16r Or, 20r = 400 Or, r = 20
Ashish started a business by investing Rs. 1400. Few months later; Ramesh joined him by investing Rs. 1600 such that at the end of the year, the profit ...
A and B together started a business with initial investment in the ratio of 1:8, respectively. The time-period of investment for A and B is in th...
A, B and C invested in partnership. A invest Rs.8000 for 6 months, B invests Rs.6000 for 4 months and C invests Rs.12000 for 3 months. C is working part...
Three partners Amit, Binod and Chanda Funded their amounts in 4:3:10. At the end of 5 months, Amit withdraws his amount such that total investment of Am...
'A', 'B' and 'C' started a business together such that 'A' invested a 20% of the total capital invested by 'A', 'B' and 'C' together, 'B' invested 25% o...
P and Q started a business by investing Rs.9000 and Rs.7500 respectively. After 7 months, Q increased his investment by a certain percentage such that a...
- Shyam and Tarun invested Rs. 1800 and Rs. 2700 respectively in a business. After 6 months, Dinesh joined with Rs. ‘x’. If Shyam’s share from a total ...
"Karan" and "Arjun" launched a business, with "Karan" contributing 25% more capital than "Arjun." 8 months later, 'Arjun' pulled out of the investment. ...
- Amit and Anil started a business jointly. Amit invested Rs. 12,000. Anil withdrew his investment after 8 months. If at the end of the year the profit was d...
Mayank and Manoj started a business with investing capital in the ratio of 8:15. After 4 months, Mayank reduced his (1 )/(4 ) portion of the capital and...
Relevant for Exams:
