Question
In an Aerobic class, the average age of all the members
was 54.5 years, 11 members left the class and 7 new members joined. If the average age increased by 3 years and the total age decreased by 140, what was the number of members in the class initially?Solution
Let the original member be x Total age of these members = 54.5x Total age of (x – 4) members = (54.5x – 140) years According to the question, 54.5x – 140 = (x – 4) `xx` 57.5 ⇒ 54.5x – 140 = 57.5x – 230 ⇒ 57.5x – 54.5x = 230 – 140 ⇒ 3x = 90 x = 30
Statements: S ≥ W = R > I < M > F > P ≤ X
Conclusion I: S > R
II: P < M
Statement: P < Q; R ≥ S; R ≥ O; S > Q ≥ T
Conclusion:
I. Q > O
II. O > T
Statements:O < P,P < Q,Q < R
Conclusions: I. P < R II. P > Q
Statements: A ≥ B = C > D = F, H < G ≤ C, C > I ≥ J ≥ E
Conclusions:
I. H > F
II. A > E
III. H ≤ F
Statements:
A ≥ Z > B ≥ Y; C > B ≥ W
Conclusion:
I. A > W
II. C > Y
Statements: I % C, C & D, D $ K, K # Z
Conclusions: I. I & D II. D # Z
...Statements:
E ≤ A > J ≥ L; Y > J < D
Conclusions:
I. D > L
II. A > L
Which of the following pair of symbols should be placed in the place of question marks respectively (in same order from left to right) in order to comp...
Statements: L < M > P ≥ Q; N > O > M
Conclusions:
I. N ≥ Q
II. O > L
III. L = Q
Which among the following symbols should replace the question mark [?] (in the same order from left to right) in the given expression in order to make ...
