For the following questions answer them individually
Selling price of an article is Rs. 616. If loss percentage is 30 percent, then what is the cost price of article?
X boys can do a work in 80 days. In how much time. 2X boys will do half of the same work?
The population of a village decreases at the rate of 40% per annum. If its population 2 years ago was 15,000, then find the present population?
If the ratio of the volumes of two cylinders is 6 : 5 and the ratio of their heights is 5 : 24, then what is the ratio of their radii?
The following table shows the sales of comic and fiction books in different shops. Find the ratio of total books sold from shop C to that of shop A.
A bus travels first 100 km at a speed of 100 km/hr. It covers next 150 km at a speed of 90 km/hr. What is the average speed?
What is the area of the lateral of a right circular cylinder. If the circumference of the base is 22 cm and its height is four times of radius?