For the following questions answer them individually
A man invested $$\frac{1}{3}$$ of his capital at 7%, 1/4 at 8% and the rest at 10% thereby getting an annual income of Rs.561. What was his capital?
In an election, a candidate won by getting 75% of the valid votes. Out of a total number of 560000 votes, 15% were invalid. What is the number of valid votes got by the winning candidate ?
Which of the following laws says that "Every object in the universe attracts every other object with a force which is proportional to the product of their masses and inversely proportional to the square of distance between them?"
Which of the following Indian Education Technology Start-ups has received the Next Billion Edtech Prize 2019?
Going downstream a boat covers 50 miles at a speed of 60 mph. While returning it takes 1 hour 15 minutes to cover the same distance. What is the average speed for the whole journey?
Which of the following materials is used for making the heating element of an electrical iron?
Na, Mg, Al, Si, P, S, Cl and Ar belong to the _____ period of the modern periodic table.