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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
The film Jurassic Park was directed by Steven Spielberg.
Add suitable question tags to the following statements from among the choices given below them:
He has a huge fan following ____?
She’s been late for work three times this week, which is sailing close to the wind, I think.
Select the most appropriate option to fill in the blank.
His voice was ______ by the sound of the helicopter.
Choose the correct sentence with proper punctuation:
Hitler began to make the party most public, and organised its biggest meeting yet of 2,000 people on 24 February 1920 in the Staatliches Hofbräuhaus...
The patient waited in dread for the trolley it would taken him to the operation theatre.
(They have hold), it is in the fitness of things that the legislature should be taken into confidence on Brexit.
Select the correctly punctuated sentence from the options below.
Select the statement that can logically complete the paragraph given below.
The Great Barrier Reef, which runs for 2,300 km along...