If Chetan's present income is ₹40,000 and it increases by 1% annually, then what will be his income 2 years from now?
The following table shows the number of bottles of 6 different colours sold by a shop in a month.
| Colour | Bottles |
| C1 | 46 |
| C2 | 34 |
| C3 | 50 |
| C4 | 42 |
| C5 | 28 |
| C6 | 40 |
The total number of bottles of C4 and CS sold in that month is approximately what percentage of the total number of bottles of all the 6 colours taken together sold in that month?
A hollow spherical shell is made of a metal of density 2.5 g/cm3 . If the external and the internal radii of the given sphere are 35 cm and 14 cm, respectively, find the mass of the shell.\( \text{use } \pi = \frac{22}{7} \)
A person sold a carpet for ₹360 and incurred a loss of 10%. At what price should it have been sold to make a gain of 20%?