Reena buys an iron for ₹900 and sells it at a loss of 12%. What is the selling price of the iron?
Find the simple interest (in ₹) on ₹2,000 as a sum borrowed at 9% per year rate of interest for 4 years.
The expenses of painting the inner curved surface of a cylindrical vessel 20 m deep is ₹4400. If the painting rate is ₹40 per m2, find the total surface area (in m2) of the vessel correct to two decimal places. \(\text{(use } \pi = \frac{22}{7}\text{)}\)
A hemispherical bowl is made of 1 cm thick copper. The inner radius of the bowl is 6 cm. Find the cost to paint the outer curved surface area of the bowl, if the paint cost is ₹2 per cm2? \(\text{(use } \pi = \frac{22}{7}\text{)}\)
Find the gain percentage, given that Nidhi sold her scooter for ₹80,442 gaining \(\frac{1}{6}\)th of the selling price.
The given table shows the number of employees in three organisations during three years.
| Organisation | Year | ||
| 2015 | 2016 | 2017 | |
| L | 1421 | 1230 | 1652 |
| M | 1459 | 1825 | 1740 |
| N | 1620 | 1125 | 1235 |
What is the respective ratio between the total number of employees in organisations L and M together in 2015, and the total number of employees in organisations M and N together in 2017?