For the following questions answer them individually
Population of a town increases 2.5%annuallybut is decreasedby0.5%everyyear due to migration. What will be the percentage of increase in 2 years?
72% of the students of a certain class took Biology and 44% took Mathematics. If each student took at least one of Biology or Mathematics and 40 students took both of these subjects, the total number of students in the class is
Rs. 1050 are divided among A, B and C in such a way that the share of A is $$\frac{2}{5}$$ of the combined share of B and C. A will get
The sides of a right-angled triangle forming right angle are in the ratio 5 : 12. If the area of the triangle is 270 cm$$^2$$, then the length of the hypotenuse is
A and B enter into partnership with capitals in the ratio 5 : 6. At the end of 8 months A withdraws his capital. They received profits in the ratio 5 : 9. B invested the capital for
What is the length of the radius of the circumcircle of the equilateral triangle, the length of whose side is $$6\sqrt{3}$$ cm ?
If the measure of a diagonal and the area of a rectangle are 25 cm and 168 cm$$^2$$ respectively, what is the length of the rectangle ?
The number of coins, each ofradius 0.75 cm and thickness 0.2 cm, to bemelted to make a right circular cylinder of height 8 cm and radius 3 cm, is
