Maria and Ariana were only two girls participating in a Billiards tournament. Every Participant played two games with every other participant. The number of games that boys played between themselves proved to exceed by 204, compared to the number of games the boys played with girls. How many participants were there?
Let the number of Boys participating in the tournament be ‘n’ Since, every participant played two games with every other participant, Therefore, the total number of games played among the boys is 2 × nC2 = n(n-1) And the number of games played with each girls = 2n But since there are two girls, hence the total number of games boys played with 2 girls = 2 × 2n = 4n Now, according to the question { n(n-1)} – 4n = 204 n2 - 5n – 204 = 0 n2 - 17n + 12n – 204 = 0 n(n-17)+ 12 (n-17)= 0 n=17,-12 Ignoring negative value We get, n=17 ∴ total number of Participants = 17 + 2 = 19
Select the option that represents the correct order of the given words as they would
appear in an English dictionary.
1. Editorial
Who reached the office last?
Select the option that is related to the fifth term in the same way as the second term is related to the first term and the fourth term is related to th...
Select the option that will come next in the following figure series.
Select the figure that will replace the question mark (?) in the following figure series.
Select the number from among the given options that can replace the question mark (?) in the following series.
86, 74, 62, 54, ?, 42, 38
Complete the series by replacing the question mark (?).
Q331T, U442X, Y553A, ?
Select the option that correctly fills in the blank and completes the series.
ay, cw, eu, gs, iq, ko, ______
The sequence of folding a piece of paper and the manner in which the folded paper is cut is shown in the following figures. How would this paper look wh...
Choose the set of numbers that is similar to the following set.
16, 30, 36}
