Question
The average age of (x + 2) students of a class is 14 years.
If the 56 years old class teacher is also included then average age of the class gets increased by three years. Find x% of 200.Solution
Total age of students = 14(x + 2) years
According to question,
[14(x + 2) + 56] = (14 + 3)(x + 2 + 1)
14x + 28 + 56 = 17x + 51
17x – 14x = 84 – 51
x = 11
So, 11% of 200 = 22
Statements: B > D = H > G < J ≤ K > L < I
Conclusion
I: B ≥ G
II: K > G
What should come in the place of question mark, in the given expressions to make ‘L < P’ always true?
L < N < O _?_ Q = R ≤ P = M
In the question, assuming the given statements to be true, find which of the conclusion (s) among the given three conclusions is/are definitely true an...
In the question, assuming the given statements to be true, find which of the conclusion (s) among given three conclusions is /are definitely true and t...
Statements: O > Q < R > P = U ≥ S > T ≥ N
Conclusion
I: S < R
II: U > N
Statements: F % W, W © R, R @ M, M $ D
Conclusions:
 I.D @ R                               II.M $ F�...
Statements: Q > W > X; J > W; Z < X < P
Conclusions:
I. P > Z
II. J > Q
III. W < P
Statements: B > D > X > T ≤ N ≥ O = U
Conclusion
I: N > D
II: T > B
In the question assuming the given statements to be true, find which of the conclusion(s) among given three conclusions is/are definitely follows and t...
Statement: X > Y > Z; A > C > X; A < D
Conclusion: I. Z < AÂ Â Â Â Â Â II. C > Y
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