For the following questions answer them individually
Find the volume of a cylinder whose diameter of base is 20 cm and height is two times that of the radius of its base.
Find the ratio in which a grocer should mix two varieties of pulses costing ₹75 and ₹90 per kg, respectively, so as to get a mixture costing ₹80 per kg.
A sells an article to B at 10% profit. B sells it to C at 25% profit. If C pays ₹6,875 for it, then the price at which A bought it is:
Sonam is a cab driver, who plies within a city. The number of kilometres that she drives on a Tuesday was 12.5% less than the number of kilometres that she drives on the day before.On the other hand, the number of kilometres that she drives on Wednesday was 20% more than the number of kilometres that she drives on Tuesday. If Sonam drives a total of 336 km on Wednesday, how many kilometres did she drive on Monday?
Simplify the expression $$\left((82\times 82Â \right) - \left(18\times 18\right))^{0.5}$$
The table below gives the age-wise distribution of number of people who responded to a survey about their favourite style of dance. As per information given in the table, what approximate percentage of the respondents till the age of 30 years indicated that Dandiya is their favourite style of dance? (Give your answer upto two decimal places)