Election

At an election there are five candidates and three members to be elected, and an elector may vote for any number of candidates not greatre than the number to be elected. Then the number of ways in which an elector may vote, is

During a presidential election, a high school held its own mock election. Students had the option to vote for candidate A, Candidate B, or several other candidates. They could also choose to spoil their ballot. The table show displays a summary of the elections results. 614 students voted for Candidate A. Approximately how many students attend the school?

The scatterplot above shows the number of registered voters, x, and the number of people who voted in the last election, y, for seven districts in a town. A line of best fit for the data is also shown. Which of the following could be the equation of the line of best fit?

In a certain election, several students collected signatures to place a candidate on the ballot . Of these signatures . 25 percent wer thrown out as invalid . Then a further 20 percent of those remaining were eliminated. What percent of the original number of signatures were left ?

In the club election, the number of contestants is one more than the number of maximum candidates for which a voter can vote. If the total number of ways in which a voter can vote be 62, then the number of candidates is: (a) 7 (b) 5 (c) 6 (d) 8

In an election, the successful candidate secured 5,77,500 votes and his nearest rival secured 3,48,700 votes. By what margin did the successful candidate win? If 2580 votes were declard invalid. How many people cast their votes?

In a legislative assembly election, a political group hired a public relations firm to promote its candidate in three ways: telephone, house calls, and letters. The cost per contact (in paise) is given in matrix A as A=[40 100 50] teleph0ne housecalls letter The no. of contacts of each type made in two cities Xand Y is given by B=[1000 500 5000] [3000 1000 10000] Find the total amount spent by the group in the two cities X and Y

An electron and a proton are in uniform electic field. The ratio of their acceleration will be

What voltage must be applied to an elect-non microscope to produce electrons of wavelength 0.4A ?

Derive the expression for the current density of a conductor in terms of the conductivity and applied electic field. Explain with reason how the mobility of electrons in a conductor changes when the potential difference applied is doubled, keeping the temperature of the conductor constant.