Question
The average score of a class of boys and girls in
examination is X. The ratio of boys and girls in the class is 4:3. If the average score of the boys (X + 2), the average score of the girls is:Solution
Let there be 4n boys and 3n girls Total score = (4n + 3n)
X = 7nX Total score of boys = 4n(X + 2) = 4nX + 8n Total score of girls = 7nX – (4nX + 8n) = (3nX – 8n) Average score of girls = ((3nX – 8n))/3n =  (3X - 8)/3
Statements: M = N ≤ P = C > G, D ≥ M > T = F
Conclusion:
I. D ≥ N
II. N > F
III. F < P
Statements: Z > V = J; V > I; A ≤ D ≤ F = Z
Conclusions:
I. V < D
II. F > J
III. J > I
Statements: I < W = T ≤ H = C ≤ Y, Y > M ≥ V
Conclusions:
I. Y ≥ W
II. H > V
III. M < T
Which of the following symbols should replace (1) and (2), respectively in the given expression in order to make the expression R < H definitely true?
Statement:
N > I ≥ H > O; O ≤ J ≤ K < F; H > P < C; C = R < S;
Conclusion:
I. I > C
II. P < F
III. H < S
Statements: L < M > P ≥ Q; N > O > M
Conclusions:
I. N ≥ Q
II. O > L
III. L = QÂ
Statements: A > B ≤ D; G < C ≤ B; F < C ≤ E
Conclusions:
I. F < D
II. E ≤ B
III. A > G
In the question, relationship between some elements is shown in the statements (s). These  statements are followed by two conclusions. Read the statem...
Statement: A≤B ≤C>D ; E<D ;F>E
Conclusions:
I. D>A
II. E<C
Statements: O > M = Q > S; M ≥ K > A; Q ≤ O < E
Conclusions: Â Â Â Â Â I. O > SÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â II. K < OÂ Â Â Â Â Â Â Â ...