tan(π/4 + θ) = (1 + tan θ) / (1 - tan θ) = 3. Solving, tan θ = 1/2. tan(2θ) = (2 × 1/2) / (1 - (1/2)^2) = 4/3. Correct option: d) 4/3
The interest earned when a sum is invested at simple interest of 12% p.a., for 3 years, is Rs. 4500. What will be the total amount received after 2 year...
A person invests ₹25,000 in a scheme offering 12% annual simple interest. After 3 years, the amount is withdrawn and some amount invested in another s...
A person invested Rs. 7500 at a simple interest rate of 12% per annum, and also invested Rs. 8000 at a compound interest rate of 15% per annum, compound...
A sum of Rs. 3100 is invested at simple interest for 2 years. If the rate interest for first year is 10% p.a. while 18% p.a. for second year, then find ...
A sum fetched a simple interest of ₹3,040 at the rate of 8 %.p.a. in 5 years. What is the sum?
An initial investment made at a 25% annual interest rate, compounded semi-annually, grows to Rs. 10,125 after one year. How much simple interest would t...
A borrowed Rs. 5500 from B for his business. How much amount A will return to B at the end of 21 months such that the sum was borrowed at simple interes...
Rs. 4500 is invested in scheme ‘A’ for a year at simple interest of 40% p.a. The interest received from scheme ‘A’ is reinvested for 2 years in ...
In what time will Rs. 21000 amount to Rs. 27951 @ 10% compound interest?
The simple interest on a sum of money is 4/25 of the sum. If the number of years is numerically half the rate per annum, then find the rate percent per ...
