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Given Data: Average age of company A = 21 years Average age of both companies A and B = 13 years Ratio of employees in A : B = 3:8 Assume Number of Employees Let = Employees in A = 3x and Employees in B = 8x Find Total Age Contributions Total age sum of A = 21×3x=63x Total age sum of B = y×8x (where y is the average age of B) The combined average formula is:
Solve for y Multiply both sides by 11x:
63x+8xy = 143x Cancel x: 63+8y = 143 8y = 80 y = 10 The average age of company B is 10 years.
What will be the geometric mean of 'Q' and 'P - Q'.
75, 80, 95, ?, 155, 200
8 13 36 123 ? 2585
45, 59, 31, ?, 17, 87
10, ?, 50, 100, 250, 500
5, 19, 30, 43, 58, ?
13 19 32 52 ? 113
What will come in the place of questions (?) mark in the following questions.
1279, 1265, ? , 1225, 1193, 1149
Find the missing character.
124, 147, 176, 207, 244, ?