For the following questions answer them individually
The monthly income of two persons is in the ratio 4:5 and their expenditures are in the ratio 7:9. If each saves ₹50 per month, then their monthly incomes are:
Study the given table and answer the question that follow.
The following: table gives the month- wise number of different types of scooters produced by a company during the first six months of 1992.
What is the total number of scooters of all the four types taken together that was produced by the company during the first six months of 1992 ?
The population of a country has been declining at 1% every decade. If the projected population of the country in 2030 is given as 1940598, what was the population of the country in 2000?
Giri bought an old machine for ₹2,000 and spent ₹500 on its repair. He sold it for ₹4,000. His profit percentage is:
If the length of a cuboid is 20 m, breadth is 5 m and height is 4 m, then find the length of diagonal of the cuboid.
If x = 32, y = 33 and z = 35, then evaluate the expression $$x^{3}+ y^{3} + z^{3} - 3xyz$$.
In what ratio must a shopkeeper mix two types of rice worth ₹60 per kg and ₹80 per kg, so that the average cost of the mixture is ₹75 per kg?
A can do $$\frac{1}{5}$$ of the work in 3 days and B can do $$\frac{1}{4}$$ of the work in 7.5 days. Working together, A and B can do $$\frac{4}{5}$$ of the same work in:
What is the value of $$\left(1\frac{1}{4} \div 2\frac{3}{5} \div 1\frac{7}{13}\right)?$$