Question
A firm finds that for the product it produces, its (own)
price elasticity of demand is 4. Currently, the firm is selling 1000 units per month at Rs. 5 per unit. If it wishes to increase its sales by 10%, it mustSolution
PED = % change in qty/ % change in price 4 = 10%/% change in price % change in price = 2.5%. Since qty has increased, the price will fall by 2.5%.
A train that is 300 meters long takes 15 seconds to pass a tree. What is the speed of the train in kilometers per hour?
Let a=i+j​+k, b=2i+j​−k, and c=a×b. The angle between c and a is:
A closed cylindrical tank has a radius of 7 m and a height of 15 m. Calculate the total surface area of the tank (use π = 22/7).
72, 81, 99, ?, 162, 207
121, 129, 139, 151, 165, 181
A sum of ₹20,000 is invested at an annual rate of interest of 10%. Calculate the difference between simple interest and compound interest after 3 year...
A contractor was tasked with constructing a bridge within 45 days. To complete the project, he initially hired 75 workers. However, after 40 days, he di...
The length of the rectangle is triple its breadth. If the perimeter of the rectangle is 48 m, then find the area (in m2) of the rectangle.
The average age of a group of five friends is 78 years. If a friend, aged 48 years, is replaced by another friend, then the avera...
