What is the difference between the average number of students of school A and B together and the average number of teachers of school C and D together?
In school A, Let number of students and teachers be 5x and 3x respectively. Now, 5x – 3x = 400 => x = 200 Total number of students = 5x = 1000 Total number of teachers = 3x = 600 Now, 2a = 1000 => a = 500 In school B, Let number of students and teachers be 7x and 9x respectively. Now, 9x – 7x = 320 => x = 160 Total number of students = 7x = 1120 Total number of teachers = 9x = 1440 Now, b + 340 = 1120 => b = 780 In school C, Here, m = 90 => n – m = 160 [n > m given] => n – 90 = 160 => n = 250 Total number of students = 90 Total number of teachers = 250 In school D, Let number of students and teachers be 4x and 5x respectively. Now, 5x – 4x = 100 => x = 100 Total number of students = 4x = 400 Total number of teachers = 5x = 500 Now, c2 = 400 => c = 20 Average number of students of school A and B together = (1000 + 1120)/2 = 1060 Average number of teachers of school C and D together = (250 + 500)/2 = 375 Required difference = 1060 – 375 = 685
If B is the daughter of F’s brother in law, then which of the following expression is true?
If S is the sister of R, then which of the following will fit in the blank, respectively?
U _ H < S _ G > R
If 'A % B' means 'A is wife of B', 'A # B' means 'A is brother of B', 'A @ B' means 'B is son of A', 'A & B' means 'A is daughter of B', 'A $ B' means '...
Answer the following question based on the direction given below.
If 'A#B' means 'A is father of B'
'A&B' means 'A is wife of B'
...'A @ B' means 'A is the father of B'. 'A & B' means 'A is the son of B'. 'A β B' means 'A is the daughter of B'. 'A # B' means 'A is married to B'. 'A ...
If ‘E # F + D + A * B & C’ is true, then how is D related to C?
If M is the sister of Q, then which of the following will fit in the blank, respectively?
O _ Z > M _ W * Q
Statements : X = E > U, T ≥ V > W, E > W = U
Conclusions : I. T >U II. X ≥ V
If X & Y means X is married to Y, X ^ Y means X is father of Y, X @ Y means X is mother of Y, X % Y means X is sister of Y. If 'H & I ^ J % K @ L % M' i...
If A%B means ‘A is daughter of B’ A@B means ‘A is wife of B’ A$B means ‘A is son of B’ A#B means ‘A is brother of B’ then in expression ...