Question
The average of a set of 25
numbers is 98. For the first 14 numbers, the mean is 84, and for the last 8 numbers, the mean is 112. Furthermore, the 17th number is 38.75% smaller than the 16th number, which is 33.33% greater than the 15th number. Calculate the difference between the 15th and 17th numbers.Solution
ATQ, Let 15th number is ‘3n’. So, 16th number = 4/3 × 3n = 4n And, 17th number = 0.6125 × 4n = 2.45n So, 3n + 4n + 2.45n = 98 × 25 – 14 × 84 – 112 × 8 = 378 Or, 9.45n = 378 Or, n = 40 Desired dierence = 3n – 2.45n = 0.55n = 0.55 × 40 = 22
Statements: U > H ≥ W; S > T ≥ B; S < H; C ≤ D = U
Conclusions:
I. D > B
II. T < U
III. W ≤ D
Statements: X > O > D; T > M ≥ O; X > R
Conclusions:
I. T > R
II. R < DStatements: E $ N, N * G, H % E
Conclusions: a) G # H Â Â Â b) H $ N
If '>' denotes '+', '<' denotes '-', '-' denotes '×', '×' denotes '÷', '÷' denotes '=', then choose the correct statement of the following.
...Statements:
E ≤ A > J ≥ L; Y > J < D
Conclusions:
I. D > L
II. A > L
Statements: E = L ≤ G < I = H; E ≥ N < A; W ≥ P ≥ M > I
Conclusions:
I. E < W
II. A ≥ M
III. N < P
Statements:
P < Q < R < S ≤ B < H; S > N ≥ Y
Conclusions:
I) P < Y
II) R ≥ N
In these questions, relationship between different elements is shown in the statements. The statements are followed by conclusions.
Statements:...
In the question, assume the given statements to be true. Find which of the following conclusion(s) among the three conclusions is/ are definitely true ...
Statements: Q > M ≤ F < H; V = A > M > P; Z < I < P
Conclusions:
 I. H ≥ Z
II. I < Q
III. V = I