For the following questions answer them individually
Deepthi loses ₹300 yearly on simple interest when the rate of interest falls from $$12\frac{1}{2}\%$$ to $$10\frac{1}{2}\%$$. The amount invested by Deepthi is:
If the retail price of a table is ₹1,100 and if the gain percentages of a manufacturer, a wholesale dealer and a retailer are 5%, 10% and 12%, respectively, then find the cost of production of the table. (Round off to the integer value.)
A sum of ₹725 is lent in the beginning of a year at a certain percentage rate of interest per annum. After 8 months, a sum
of ₹362.50 more is lent, but at double the previous rate. At the end of the year, ₹53.50 is earned as simple interest from
both the loans. What was the original rate of interest per annum (correct to two decimal places)?
A sum of ₹x is divided between A, B and C in the ratio $$\frac{3}{4} : \frac{4}{5} : \frac{5}{8}$$ . If the difference between the shares of A and C is ₹185, then what is the value of $$x$$ ?
A certain sum amounts to ₹8,330 in $$2\frac{1}{2}$$ years and rto ₹10,166 in $$5\frac{1}{2}$$ years at a certain rate per cent per annum, both at simple interest. What will be the simple interest (in ₹) on the same sum in 4 years ar double the rate?
Simplify the following expression.
$$2-\left[2\frac{1}{2} \times\left(-\frac{2}{3}\right)-5 \left\{\frac{1}{5} - \left(\frac{5}{3} - \frac{7}{10}\right)\right\}\right]$$
Madhur is thrice as good as Manisha, and together they complete a task in 15 days. In how many days will Madhur alone complete the task?
A man wanted to sell an item at 25% profit, but he actually sold it at 25% loss for ₹870. At what price did he want to
sell it to earn the profit of 25%?
A and B worked together and received a salary of ₹20,800 for 13 days. A's efficiency in the work was 7 times that of
B's. The daily wages of B were: