A trader makes a profit equal to the selling price of 75 articles when he sold 100 of the articles . What % profit did he make in the transaction?

Given k = -3. Find the value of $$ {k^3+3k}$$. 

The ratio of curved surface area and volume of a cylinder is 1 : 7. The ratio of total surface area and volume is 187 : 770. What is the respective ratio of its base radius and height?

Find the missing number?

In which of the following institutes was the first Indian Railway University established in September 2018?

India launched an initiative to fund how many PhD fellowships for ASEAN students at IITs?

How much maternity benefits will be given to the pregnant mothers under the National Food Security Bill?

Direction: What is the approximate value will come in place of the question mark(?) in the following questions?
5682 ÷ 63 × 36=? ×19