Question
A certain number of students from school X appeared in
an examination and 30% students failed. 150% more students than those from school X, appeared in the same examination from school Y. If 80% of the total number of students who appeared from both the schools passed, then what is the percentage of students who failed from Y?Solution
Number of students failed in school X = 30% Number of students in school Y = 150% more than number of students in school X Students passed in both schools = 80% Let number of students in school X be 100x. Number of failed students in school X = 30% of 100x = 30x Number of passes students in school Y = (100x – 30x) = 70x Number of students in school Y = 100x + 150% of 100x = 100x + 150x = 250x Total number of students in school X and school Y = 100x + 250x = 350x Number of passes students in both schools = 80% of 350x = 280x So, number of passed students in school Y = 280x – 70x = 210x Number of failed students in school Y = 250x – 210x = 40x Percentage of failed students in school Y = (40x/250x) × 100% = 16% ∴ The percentage of students who failed from school Y is 16%.
Statements: Q © E, S % C, E $ S, C @ AÂ
Conclusions:Â
I. A © CÂ
II. S % AÂ
III. C © Q
Statements:Q = S > T > Z; T > Y = H < I
Conclusions: I. Z > H II. I > Z
Statements:
Few Platforms are Trains.
All Platforms are Stations.
Some Stations are not Passengers.
Conclusion:
I. No...
Statements: D = B ≤ I < L ≥ M = R; T = U ≥ L
Conclusion: I. D < U II. B = T
If A = B, C ≥ D, A < D and  E > B , then which of the following conclusion is true?
Statements: I > J = K ≥ M; D ≥ F ≤ E = I
Conclusions:
I. M < E
II. D ≥ MWhich of the following expressions will be true if the expression Q ≥ M = R > F = E ≤ X is definitely true?
Statement: W ≥ V > U < G ≥ S; V ≥ I = P
Conclusion: I. W > IÂ Â Â Â Â Â II. W = P
In the following question the relationship between different elements is given in the statements followed by three conclusions I, II and III. Read the ...
Statement: L ≥ M ≤ R = S; M > N ≥ P
Conclusions:
I. P ≤ M
II. L > N
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