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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
“Flared or open” squares, Premature boll opening and shedding sypmtoms caused by:
Among the options given below, which of the following fishes possess electric organ?
Muriate of potash is not suitable for which of the following crop?
An association between organisms of two different species in which one is inhibited or destroyed and the other is unaffected is called
Sulphur requirement is high to crops belonging to the family:
The nematode lacks:
Which one is variety of onion
In delinting process, the ration of concentrated sulphuric acid to cotton seed is:
A special practice in which male buds are removed after completion of female phase is done in which fruit crop_______
Under Section (43)2 of the FSS Act 2006 the FSSAI has notified how many laboratories in September 2017: