Question
Find the value of 3/4 cot² 30° + cos²
30°-3cosec²60° + tan² 60°.Solution
3/4 cot² 30° + cos² 30°- 3cosec²60° + tan² 60° => ¾ × 3 + ¾ - 3 × 4/3 + 3 => 9/4 + ¾ - 4 + 3 => (12/4) – 1 = 2
Anita and Rohan each invested a sum of ₹12,000 for 2.5 years at 20% compound interest per annum. However, while for Anita the interest was compounded ...
Rs. 5000 when invested at simple interest of r% p.a. amounts to Rs. 6000 in 24 months. If the same sum had been invested for 1 year at compound interest...
The difference between compound and simple interest on a sum of money for 2 years at 25% per annum is Rs. 880. The sum is:
Rahul deposits a sum of money at an annual compound interest rate of 15%. After 1 year, the interest accumulated amounts to Rs. 180. If he increases his...
Akshay invested Rs. 1560 in two schemes P and Q in the respective ratio of 9:4. Scheme P and Q are offering simple interest at the rate of 10% per annum...
'M' placed a specific amount of money into the 'SBI' Mutual Fund, which provides a 15% per annum simple interest rate. Simultaneously, 'M' invested the ...
Suman paid ₹9,600 in interest on a loan she obtained 5 years ago with a simple interest rate of 16%. What was the amount of the loan she had taken?
Raghav placed an amount of Rs. 'x' in an account with an annual compound interest rate of R%. After 3 years, the compounded annual amount is Rs.12167. A...
Find the rate of simple interest at which Rs. 6000 should be invested for 2 years so that the interest earned will be same as the interest received when...
What sum of money must be given at simple interest for 9 months at 5% per annum in order to earn Rs. 360 interest?