A person lends Rs. 18,000 to a friend at a simple interest rate of 10% per annum. After 2 years and 6 months, the friend returns Rs. 12,000 and asks for...
In what time will Rs. 25000 amount to Rs. 26530.20 @ 4% compound interest payable half-yearly?
If tan(π/4 + θ) = 3, find tan(2θ):
4, 5, 18, 95, 672, ?.
A trader marks up the price of an article by 50% and offers a discount of 20%. If the trader makes a profit of ₹150 on the article, what was its cost ...
C is 50% more efficient than D. Together, they can finish a task in 12 days. How many days will D alone take to complete the task?
A merchant mixes two varieties of rice, one costing ₹55 per kg and the other costing ₹80 per kg, and sells the mixture at ₹75 per kg, making a pro...
A cone has a slant height of 20 cm and the radius of its base is 15 cm. Find the volume of the cone
If cos θ = 3/5, find the value of sin 2θ:
The salaries of A and B are in the ratio 3:5. If the salary of A increases by 20% and the salary of B increases by 10%, the new sum of their salaries be...
