A merchant bought 60 sheep at ₹120 per sheep. He sold 40 of them at ₹150 each. Another 10 of the sheep died. What should be the selling price of the remaining sheep, if he wants a total profit of ₹800?
The following table shows the number of cars of 6 different brands on the roads during a given year.
| Brand | Cars |
| B1 | 2000 |
| B2 | 2200 |
| B3 | 2700 |
| B4 | 1800 |
| B5 | 1300 |
| B6 | 3000 |
The cars of brand B2 are what percentage of the number of cars of all the 6 given brands taken together? [Give your answer correct to 2 decimal places.]
The volume of a right circular cone is 1967 cm3 . If the area of its base is 154 cm2 , what is the vertical height of the cone?\( \text{use } \pi = \frac{22}{7} \)
The area of a circle is 15400 cm2 . What is the positive difference between the radius and the circumference of the circle?\( \text{use } \pi = \frac{22}{7} \)